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ู
ูุณููู
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ุจุณู
ุงููู ุงูุฑุญู
ู ุงูุฑุญูู
ูุนูุฏ ุงูุฃู ูุฅูู
ุงู ู
ุง ุงุจุชุฏูุงู
3
00:00:23,670 --> 00:00:28,950
ูู ุงูู
ุญุงุถุฑุฉ ุงูู
ุงุถูุฉ ููู section 5-7 ุงูุฐู ูุชุญุฏุซ ุนู
4
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ุงู undetermined coefficients ุงููู ูู ุทุฑููุฉ
5
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ุงูู
ุนุงู
ูุงุช ุงูู
ุฌูููุฉ ูุญู ุงูู
ุนุงุฏูุฉ ุงูุชูุงุถููุฉุจูุญู ุจูุฐู
6
00:00:38,110 --> 00:00:42,370
ุงูุทุฑููุฉ ุฅุฐุง ุชุญูู ูู ุงูู
ุนุงุฏูุฉ ุฃู
ุฑุงู ุงูุฃู
ุฑ ุงูุฃูู
7
00:00:42,370 --> 00:00:48,210
ูุงูุช ุงูู
ุนุงู
ูุงุช ูููุง ุซูุงุจุช ููู
ุนุงุฏูุฉ ุงูุชูุงุถููุฉ ุงูุฃู
ุฑ
8
00:00:48,210 --> 00:00:53,450
ุงูุซุงูู ุดูู ุงู F of X ุชุจูู ุนูู ุดูู ู
ุนูู ู
ุง ูู ูุฐุง
9
00:00:53,450 --> 00:00:57,810
ุดูู ุฃุญุฏ ุซูุงุซุฉ ุฃู
ูุฑ ุงูุฃู
ุฑ ุงูุฃูู ุฃู ูููู polynomial
10
00:00:57,810 --> 00:01:01,930
ุงูุฃู
ุฑ ุงูุซุงูู polynomial ูู exponential ุงูุฃู
ุฑ
11
00:01:01,930 --> 00:01:07,170
ุงูุซุงูุซ polynomialูู exponential ูู sin x ุฃู cos x
12
00:01:07,170 --> 00:01:12,390
ุฃู ู
ุฌู
ูุนูู
ุง ุฃู ุงููุฑู ููู
ุง ุจูููู
ุง ูุนุทููุง ุนูู ุฐูู ูู
13
00:01:12,390 --> 00:01:17,270
ุงูู
ุฑุฉ ุงูู
ุงุถูุฉ ู
ุซุงููู ููุฐุง ูู ุงูู
ุซุงู ุฑูู
ุชูุงุชุฉ ูุจูู
14
00:01:17,270 --> 00:01:21,270
ุจุฏูุง ูุญู ุงูู
ุนุงุฏูุฉ ุงูุชูุงุถููุฉ ุงููู ุนูุฏูุง ูุฐู ุฐูุฑูุง
15
00:01:21,270 --> 00:01:24,830
ูู ุงูู
ุฑุฉ ุงูู
ุงุถูุฉ ุจูุฌุฒุฆูุง ุฅูู ุฌุฒุฆูู ุจูุงุฎุฏ ุงู
16
00:01:24,830 --> 00:01:28,730
homogeneous ูู
ู ุซู
ุงู non homogeneous differential
17
00:01:28,730 --> 00:01:34,790
equationูุจูู ุจุฏุงุฌู ุงูููู ุงูุชุฑุถ ุงู Y ุชุณุงูู E ุฃูุณ RX
18
00:01:34,790 --> 00:01:45,450
ุจูู solution of the homogeneous differential
19
00:01:45,450 --> 00:01:51,890
equation ุงููู ูู ุงูู
ุนุงุฏูุฉ ุงูุชุงููุฉ Y W Prime ุฒุงุฆุฏ Y
20
00:01:51,890 --> 00:01:57,450
ูุณุงูู Zero then the characteristic equation
21
00:02:12,070 --> 00:02:18,010
ุงูุญู ุงูู
ุชุฌุงูุณ ูุจูู
22
00:02:22,280 --> 00:02:32,080
The Homogeneous Differential Equation is ููุณุงูู
23
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ูุงุณุงูู ูุงุณุงูู
24
00:02:40,580 --> 00:02:44,700
ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู
25
00:02:44,700 --> 00:02:45,880
ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู
26
00:02:45,880 --> 00:02:47,560
ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู
27
00:02:47,560 --> 00:02:47,560
ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู
28
00:02:47,560 --> 00:02:47,560
ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู
29
00:02:47,560 --> 00:02:47,620
ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู ูุณุงูู
30
00:02:47,620 --> 00:02:51,060
ูุณุงูู ูุณุงูู
31
00:02:51,060 --> 00:02:56,550
ูุณุจุฏู ุฃุฑูุญ ุฃุฏูุฑ ุนูู particular solution ูุญู
32
00:02:56,550 --> 00:03:01,730
ุงูู
ุนุงุฏูุฉ ุงููู ูู non homogeneous ูุจุงุฌู ุจูููู the
33
00:03:01,730 --> 00:03:07,970
particular solution
34
00:03:07,970 --> 00:03:17,010
of theDifferential equation start ู ุจุฑูุญ ุงููู ููู
35
00:03:17,010 --> 00:03:24,150
ุงูุฃุณุงุณูุฉ ูุฐู ุจุณู
ููุง star S ู
ุฏููู ุงูุฑู
ุฒ YP ู ุจุฏู
36
00:03:24,150 --> 00:03:31,510
ุจููู ูุชุงูู X to the power S Vุจุฃุฌู ุนูู ุดูู ุงููู ูู
37
00:03:31,510 --> 00:03:35,650
ุงูุฏุงูุฉ ุงููู ุนูุฏูุง ูุฐู ุฑูู
ูู sign ูุนูู polynomial
38
00:03:35,650 --> 00:03:39,790
ู
ู ุงูุฏุฑุฌุฉ ุงูุตูุฑูุฉ ู
ุถุฑูุจุฉ ูู sign ุฅุฐุง ุจุฏู ุฃูุชุจ
39
00:03:39,790 --> 00:03:43,630
polynomial ู
ู ุงูุฏุฑุฌุฉ ุงูุตูุฑูุฉ ูู sign ุฒุงุฆุฏ
40
00:03:43,630 --> 00:03:49,090
polynomial ูู cosine ูุจูู ุจูุฏุฑ ุฃููู ูุฐู ุนุจุงุฑุฉ ุนู a
41
00:03:49,090 --> 00:03:55,610
ูู cosine ุงู x ุฒุงุฆุฏ b ูู sine ุงู x ุจุงูุดูู ุงููู
42
00:03:55,610 --> 00:04:04,280
ุนูุฏูุง ูุฐุงุนูุฏู
ุง ุฃุจุญุซ ุนู ููู
ุฉ S ูู ูู 0 ุงู 1 ุงู 2 ุงู
43
00:04:04,280 --> 00:04:06,980
3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู
44
00:04:06,980 --> 00:04:10,500
3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู
45
00:04:10,500 --> 00:04:10,560
3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู
46
00:04:10,560 --> 00:04:10,600
3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู
47
00:04:10,600 --> 00:04:11,400
3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู
48
00:04:11,400 --> 00:04:11,720
3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู
49
00:04:11,720 --> 00:04:21,600
3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู 3 ุงู
50
00:04:24,720 --> 00:04:28,780
ุจูุงุญุฏ ูุดูู ูู ุญุทูุชูุง ุจูุงุญุฏ ุจูุธู ููู ุชุดุจู ููุง ุจูููู
51
00:04:28,780 --> 00:04:34,980
ุงูุชูู ูุฐุง ุงูุชุดุจู ุฅุฐุง ูู ุญุทูุช S ุจูุงุญุฏ ุจูุตูุฑ AX Cos
52
00:04:34,980 --> 00:04:41,400
ูููุง BX Sin ูู ูู ุฃู term ููุง ูุดุจู ุฃู term ููุง
53
00:04:41,400 --> 00:04:48,920
ุทุจุนุง ูุฃ ูุจูู ููุง hereููุง ุงู S ุชุณุงูู ูุงุญุฏ ูู
ุง ุญุท ุงู
54
00:04:48,920 --> 00:04:53,740
S ุชุณุงูู ูุงุญุฏ ุจูููู ุฃุฒููุง ุงูุดุจู ุงููู ู
ูุฌูุฏ ุชู
ุงู
ุง ู
ุง
55
00:04:53,740 --> 00:04:56,880
ุจูู ุงู complementary solution ู ุงู particular
56
00:04:56,880 --> 00:05:02,600
solution ูุจูู ุจูุงุก ุนููู ููุตุจุญ YP ุนูู ุงูุดูู ุงูุชุงูู
57
00:05:02,600 --> 00:05:12,510
AX ูู cosine X ุฒุงุฆุฏ BX ูู sine Xุงูุงู ุจุฏูุง ูุญุฏุฏ
58
00:05:12,510 --> 00:05:19,010
ููู
ุชูู ุซูุงุจุช ุงู A ู ุงู B ูุฐูู ุจุฏู ุงุดุชู ู
ุฑุฉ ู ุงุชููู
59
00:05:19,010 --> 00:05:26,590
ู ุงุนูุถ ูู ุงูู
ุนุงุฏูุฉ ุงูุฃุตููุฉ ูุจูู ุจุฏู ุงุฎุฏ Y P Prime
60
00:05:26,930 --> 00:05:34,310
ูุฐู ุงูู
ุดุชูุฉ ุญุตู ุถุฑุจ ุฏุงูุชูู ูุจูู a ูู cos x ูุงูุต ax
61
00:05:34,310 --> 00:05:41,070
ูู sin x ุฒุงุฆุฏ ูู
ุงู ูุฐู ุญุตู ุถุฑุจ ุฏุงูุชูู ูุจูู b ูู
62
00:05:41,070 --> 00:05:50,100
sin x ุฒุงุฆุฏ bx ูู cos xูุจูู ุงุดุชููุง ููู ู
ู X ู Cos X
63
00:05:50,100 --> 00:05:56,040
ู X ู Sin X ูุญุงุตู ุถุฑุจ ุฏูุชูู
ูุฐุง ุญุตููุง ุนูู Y' ุทุจุนุง
64
00:05:56,040 --> 00:06:00,020
ู
ุงููุด ู ูุง term ุฒู ุงูุชุงูู ูุจูู ุจูุฎูู ูู ุดู ุฒู ู
ุง
65
00:06:00,020 --> 00:06:06,500
ูู ุจุฏูุง ูุฑูุญ ูุฌูุจ YPW' ูุจูู ุจุฏูุง ุงุดุชู ูุฐู ุจุงูุณุงูุจ
66
00:06:06,500 --> 00:06:16,830
A Sin X ููุฐู ุงูุณุงูุจ A Sin Xุจุนุฏ ุฐูู ุงุชุณุงูุจ ax ูู
67
00:06:16,830 --> 00:06:23,190
cos x ุงุดุชูุช ูุฐู ุญุตู ุถุฑุจ ุฏูุชูู ุจูุงููุฌ ุงููู ุจุนุฏูุง
68
00:06:23,190 --> 00:06:29,610
ูุจูู ุฒุงุฆุฏ b ูู cos x ุฎูุตูุง ู
ููุง ุจุฏุฃุช ุงุดุชู ูุฐู ุญุตู
69
00:06:29,610 --> 00:06:38,190
ุถุฑุจ ุฏูุชูู ูุจูู ุฒุงุฆุฏ b ูู cos x ูุงูุต bx ูู sin x
70
00:06:38,620 --> 00:06:42,780
ูุจูู ุงุดุชููุงู ุญุตู ุถุฑุจ ุฏูุชูู ููุง ูู ุจุนุถ ุงูุนูุงุตุฑ
71
00:06:42,780 --> 00:06:50,640
ู
ุชุดุงุจูุฉ ูู ุนูุฏ ููุง ุณุงูุจ ุงุชููู a ูู sine ุงู X ูุนูุฏู
72
00:06:50,640 --> 00:06:56,880
ูู
ุงู ุฒุงุฆุฏ ุงุชููู b ูู cosine ุงู X ูุฏูู ุงุชููู ู
ุน ุจุนุถ
73
00:06:56,880 --> 00:07:03,720
ู ูุฏูู ุงุชููู ู
ุน ุจุนุถ ุจุงูู ุนูุฏู ูุงูุต ax ูู cosine ุงู
74
00:07:03,720 --> 00:07:10,180
X ููุงูุต bx ูู sine ุงู Xุจุนุฏ ุฐูู ุงุฎุฐ ุงูู
ุนููู
ุงุช ุงููู
75
00:07:10,180 --> 00:07:15,040
ุญุตูุช ุนูููุง ู ุงุนูุถ ูู ุงูู
ุนุงุฏูุฉ star ูุจูู ููุง
76
00:07:15,040 --> 00:07:23,320
substitute in
77
00:07:23,320 --> 00:07:33,740
the differential equation star we get ุจูุญุตู ุนูู ู
ุง
78
00:07:33,740 --> 00:07:34,200
ูุฃุชู
79
00:07:40,110 --> 00:07:43,630
ูุฌุจ ุงู ุงุฒุงูุฉ ูู ุฏุงุจูู ุจุฑุงูู
ูุงุญุท ููู
ุชูุง ูู ุฏุงุจูู
80
00:07:43,630 --> 00:07:48,950
ุจุฑุงูู
ูู ุญุตููุง ุนูููุง ูุจูู ูุงูุต ุงุชููู ุงู ุตูู
81
00:07:48,950 --> 00:07:55,980
ุงูุฒุงููุฉ ุซุชุง ุตูู ุงูุฒุงููุฉ Xุชู
ุงู
ุ ุงููู ุจุนุฏูุง ุฒุงุฆุฏ
82
00:07:55,980 --> 00:08:04,340
ุงุชููู B ูู cosine ุงู X ุงููู ุจุนุฏูุง ูุงูุต ุงู AX ูู
83
00:08:04,340 --> 00:08:11,080
cosine ุงู X ูุงูุต ุงู BX ูู sine ุงู X ูุฐุง ููู ุงููู
84
00:08:11,080 --> 00:08:17,400
ุฃุฎุฏุชู ู
ููุ YW prime ุถุงูู ููุง ู
ููุ Y ููู Y ูุงููุงุ
85
00:08:17,400 --> 00:08:24,560
ุจุฏู ุฃุฌู
ุนูู
ูุฏูู ูุจูู ุฒุงุฆุฏูู ุงููู ูู ู
ูู ax ูู cos
86
00:08:24,560 --> 00:08:33,520
x ู ุจุนุฏ ูู ูุฏู ุฒุงุฆุฏ bx ูู sin x ููู ุจูุณูู ุงูุทุฑู
87
00:08:33,520 --> 00:08:40,300
ุงููู ูุชุจุน ุงูู
ุนุงุฏูุฉ ุงููู ูู 4 ูู sin xุจูุฌู ูุฌู
ุน ุนูุง
88
00:08:40,300 --> 00:08:47,940
ax cos ุจุงูุณุงูุจ ู ax cos ุจุงูู
ูุฌุจ ุนูุง bx sin ุจุงูุณุงูุจ
89
00:08:47,940 --> 00:08:53,220
ู bx ุจูู
ูู ุจุงูู
ูุฌุจ ูุจูู ุตูุฉ ุงูู
ุนุงุฏูุฉ ุนูู ุงูุดูู
90
00:08:53,220 --> 00:09:00,740
ุงูุชุงูู ูุงูุต ุงุชููู a sin x ุฒุงุฆุฏู ุงุชููู b cos x ููู
91
00:09:00,740 --> 00:09:07,540
ุจุฏู ูุณูู ุงุฑุจุน sin xุจุนุฏ ุฐูู ููุฑุฑ ุงูู
ุนุงู
ูุงุช ูู
92
00:09:07,540 --> 00:09:13,340
ุงูุทุฑููู ุฅุฐุง ูู ูุฑุฑูุง ุงูู
ุนุงู
ูุงุช ูู ุงูุทุฑููู ุจุณูุง ููุต
93
00:09:13,340 --> 00:09:19,580
ุงุชููู a ุจุฏู ุณุงูู ูุฏุงุด ุงุฑุจุนุฉ ูุนูุฏู ุงุชููู b ุจุฏู ุนูุฏู
94
00:09:19,580 --> 00:09:26,520
cosine ููุง ู
ุงุนูุงุด ูุจูู ุจูู zero ูุฐุง ู
ุนูุงู ุงู ุงู a
95
00:09:26,520 --> 00:09:33,330
ุชุณุงูู ุณุงูุจ ุงุชููู ู ุงู b ุชุณุงูู zeroูุจูู ุฃุตุจุญ ุดูู ุงู
96
00:09:33,330 --> 00:09:46,570
YP ุนูู ุงูุดูู ุงูุชุงูู ูุจูู
97
00:09:46,570 --> 00:09:50,570
ุฃุตุจุญ ูุฐุง ุดูู ุงู YP
98
00:10:01,840 --> 00:10:11,150
Y ูุณุงูู YC ุฒุงุฆุฏ YPูุจูู ุจูุงุก ุนููู ูุตุจุญ y ูุณูู yc ูู
99
00:10:11,150 --> 00:10:20,070
ุงูู
ูุฌูุฏ ุนูุฏู ูุจูู c1 cos x ุฒุงุฆุฏ c2 ูู sin x ูุฒุงุฆุฏ
100
00:10:20,070 --> 00:10:28,010
yp ูุงูุต 2x ูู cos x ูุจูู ูุฐุง ุงูุญู ุงูููุงุฆู ุชุจุน ู
ูุ
101
00:10:28,010 --> 00:10:32,990
ุชุจุน ุงูู
ุนุงุฏูุฉ ูุงุญุธู ููุง term ู
ู ุงูุชูุงุช termุงุช ุฒู
102
00:10:32,990 --> 00:10:38,240
ุงูุชุงูู ู
ุงููุด ุชุดุงุจูุจูู ุฃู term ูุงูterm ุงูุซุงูู
103
00:10:38,240 --> 00:10:46,440
ุงูู
ุซุงู ุฑูู
ุฃุฑุจุน ูุจูู example ุฃุฑุจุน
104
00:10:46,440 --> 00:10:50,720
ุจููู
105
00:10:50,720 --> 00:10:56,260
ุฏู term a suitable
106
00:10:56,260 --> 00:11:03,480
form ุดูู
107
00:11:03,480 --> 00:11:09,990
ู
ูุงุณุจFor the
108
00:11:09,990 --> 00:11:19,330
particular solution
109
00:11:19,330 --> 00:11:23,490
of the
110
00:11:23,960 --> 00:11:32,520
Differential equation ููู
ุนุงุฏูุฉ ุงูุชูุงุถููุฉ YW' ูุงูุต
111
00:11:32,520 --> 00:11:49,540
4Y' ุฒุงุฆุฏ 4Y ูุณุงูู 2X ุชุฑุจูุน ุฒุงุฆุฏ 4X E ุฃุณ 2Xุฒุงุฆุฏ ุงูุณ
112
00:11:49,540 --> 00:11:55,100
ูู ุตูู ุงุชููู ุงูุณ ููุฐู ุจุฏู ุงุณู
ููุง ุงูู
ุนุงุฏูุฉ ูู ู
ู
113
00:11:55,100 --> 00:12:00,960
ุงูstar ูุจูู ุฌุณูู don't
114
00:12:00,960 --> 00:12:07,800
don't evaluate the
115
00:12:07,800 --> 00:12:08,620
constants
116
00:12:38,460 --> 00:12:43,640
ูุงูุจ ุงูููููุฉ ุชุงููููุฑุฃ ุงูุณุคุงู ู
ุฑุฉ ุชุงููุฉ ููุดูู ุดู
117
00:12:43,640 --> 00:12:51,120
ุงูู
ุทููุจ ุจูููููู ุญุฏุฏ ุญู ูู ุดูู ู
ูุงุณุจ ูู particular
118
00:12:51,120 --> 00:12:54,400
solution y, z ุชุจุน ุงู differential equation ูุฐุง
119
00:12:54,400 --> 00:12:57,020
ูุจูู ุงููุงุณ ุจุชุญุฏุฏ ุดูู ุงู particular solution
120
00:12:57,020 --> 00:13:00,840
ููููููู ู
ุง ุชุญุณุจุด ุงูุซูุงุจุช ุงุถุงูุน ุดูุงุฌุฏู ูุงูุช ุจุชุฌูุจ
121
00:13:00,840 --> 00:13:04,120
ุงูู
ุดุชูุฉ ุงูุฃููู ูุงูุชุงููุฉ ูุงุชุนูุถ ูู ุงูู
ุนุงุฏูุฉ ูุงุชุฌูุจ
122
00:13:04,120 --> 00:13:07,940
ููู ุฌุฏูุด ููู
ุฉ a ูb ุงู a ูb ูc ูู
ุง ุฅูุง ุจุชุฏูุด ููู
ุฉ
123
00:13:07,940 --> 00:13:11,650
ุซูุงุจุช ุจุณ ูุชูู ุดูู mainุงูู Particular solution ููุณ
124
00:13:11,650 --> 00:13:15,790
ูุงุฒู
ูููู ููู
ุชู ุซุงู
ุชู ุจูููู ูููุณ ูุจูู ูุญุชุงุฌ
125
00:13:15,790 --> 00:13:20,350
ููู
ุนุงุฏูุฉ ูุญุชุงุฌ ุฃู ูุฃุฎุฐ ุงููHomogeneous differential
126
00:13:20,350 --> 00:13:24,550
equation ูุจูู ูุจุฏุฃ ูู
ุง ุจุฏุฃุช ูู ุงูู
ุซุงู ุงููู ูุจูู
127
00:13:24,550 --> 00:13:29,290
let Y ุชุณุงูู E ุฃูุณ RX ุจุฅููุ
128
00:13:41,220 --> 00:13:50,680
ูุจูู ุจุงุฌู ุจูููู the characteristicEquation is R
129
00:13:50,680 --> 00:13:56,060
ุชุฑุจูุน ูุงูุต ุงุฑุจุนุฉ R ุฒุงุฆุฏ ุงุฑุจุนุฉ ูุณุงูู Zero ุงู ุงู
130
00:13:56,060 --> 00:14:02,560
ุดุฆุชู
ูููููุง R ูุงูุต ุงุชููู ููู ุชุฑุจูุน ุชุณุงูู Zero ุงู
131
00:14:02,560 --> 00:14:09,370
ุงู R ุชุณุงูู ุงุชููู ูุงูุญู ูุฐุง ู
ูุจุฑ ูู
ู
ุฑุฉุูุจูู ู
ุฑุชูู
132
00:14:09,370 --> 00:14:12,850
ูุจูู of multiplicity two
133
00:14:19,800 --> 00:14:25,640
2 ูุนูู ุงูุญู ู
ูุฑุฑ ู
ุฑุชูู ุจูุงุก ุนููู ุจุฑูุญ ุจูููู ููุง
134
00:14:25,640 --> 00:14:32,220
ูุจูู solution yc ุจุฏู ูุณุงูู ุงูุญู real ู ู
ูุฑุฑ ู
ุฑุชูู
135
00:14:32,220 --> 00:14:38,680
ูุจูู c1 ุฒุงุฆุฏ c2x e ุงุต r
136
00:14:44,740 --> 00:14:49,820
ุจูุจุฑูุฒ ูุฐุง ุงูุญู ู ุจูุณูุจู ู ุจูุฑูุญ ูุฑุฌุนูู ุจุนุฏ ูููู
137
00:14:49,820 --> 00:14:52,800
ุงูุงู ุจุฏูุง ููุฌู ูู non homogeneous differential
138
00:14:52,800 --> 00:14:56,280
equation ุงููู ุงู star ุงููู ุนูุฏูุง ุจุฏูุง ูุชุทูุน ุนูู
139
00:14:56,280 --> 00:15:00,240
ุดูู ุงู F of X ุงููู ูู ุงูุดูู ุงููู ุนูุฏูุง ูุฐุง ูู ูู
140
00:15:00,240 --> 00:15:05,740
polynomial ููุทุุฃู polynomial ูู exponential ุฃู
141
00:15:05,740 --> 00:15:09,360
polynomial ูู sin ุฃู cos ุงูู
ุฌู
ูุนุฉ ุงูุญู
ุฏ ููู ุฌุงูุจุฉ
142
00:15:09,360 --> 00:15:13,720
ุงูุชูุช ุญุงูุงุช ูููู
ุจุณุคุงู ุงููุงุนู ูู polynomial ู
ู
143
00:15:13,720 --> 00:15:17,180
ุงูุฏุฑุฌุฉ ุงูุซุงููุฉ polynomial ู
ู ุงูุฏุฑุฌุฉ ุงูุฃููู ูู
144
00:15:17,180 --> 00:15:21,820
exponential polynomial ู
ู ุงูุฏุฑุฌุฉ ุงูุฃููู ูู sin ุฅุฐุง
145
00:15:21,820 --> 00:15:27,630
ุฅูุด ูุนู
ู ูู ุงูู
ุนุงุฏูุฉ ุงููู ุนูุฏูุูุฌุฒููุง ุฅูู ุซูุงุซ
146
00:15:27,630 --> 00:15:31,690
ู
ุนุงุฏูุงุช ุชู
ุงู
ุ ู ุฃุญู ูู ูุงุญุฏุฉ ูููู
ู ุฃุฌูุจ ุงู
147
00:15:31,690 --> 00:15:35,390
particular solution ุชุจุนูุง ู ุฃุฌู
ุน ุงูุญููู ุงูุชูุงุชุฉ
148
00:15:35,390 --> 00:15:38,810
ุจูุนุทููู ุงู particular solution ูู
ููุ ููู
ุนุงุฏูุงูุฉ
149
00:15:38,810 --> 00:15:43,970
ุทุจูุง ูุงููุธุฑูุฉ ุงููู ุฃุนุทุงูููุง ููู
ูู ุฃูู section ูู
150
00:15:43,970 --> 00:15:46,970
ุงู non homogeneous differential equation ููููุงูููุง
151
00:15:46,970 --> 00:15:53,150
ูุฐุง ุจููุฒู
ูุง ูู
ููุ ูู sections ุงููุงุฏู
ุฉ ุชู
ุงู
ุ ูุจูู
152
00:15:53,150 --> 00:16:01,260
ุจุฏุงุฌู ุฃูููู ููุงdifferential equation star is
153
00:16:01,260 --> 00:16:08,360
written as ูู
ูููุง ุฃู ููุชุจูุง ุนูู ุงูุดูู ุงูุชุงูู ุงูู y
154
00:16:08,360 --> 00:16:14,460
double prime ูุงูุต ุฃุฑุจุนุฉ y prime ุฒุงุฆุฏ ุฃุฑุจุนุฉ y ูุณูู
155
00:16:14,460 --> 00:16:20,580
ูู
ุ ูุณูู ุงุชููู x ุชุฑุจูุน ุงูู
ุนุงุฏูุฉ ุงูุซุงููุฉ ุงููู ูู
156
00:16:20,580 --> 00:16:33,690
ู
ููุYW'-4Y'ุฒุงุฆุฏ 4Y ูุณุงูู 4XE2X
157
00:16:33,690 --> 00:16:45,370
ุงูู
ุนุงุฏูุฉ ุงูุชุงูุชุฉ YW'-4Y'ุฒุงุฆุฏ 4Y ูุณุงูู XSIN2X ูุณุงูู
158
00:16:45,370 --> 00:16:50,350
X ูู SIN2X ุจุงูุดูู ุงููู ุนูุฏูุง ูุฐุง
159
00:16:58,280 --> 00:17:03,840
ุทูุจุ ุงูุขู ูุนูู ูุฃูู ุตุงุฑ ุนูุฏู ู
ุด ู
ุณุฃูุฉ ูุงุญุฏุฉุ ุซูุงุซ
160
00:17:03,840 --> 00:17:07,120
ู
ุณุงุฆูุ ุจุฏู ุฃุญู ูู ูุงุญุฏ ุฃุฌูุจ ุงู particle solution
161
00:17:07,120 --> 00:17:12,980
ูุฃูู ูุง ุนูุงูุฉ ููุง ุจู
ูู ุจุงูุงุฎุฑูุ ูุจูู ููุง ุจุฏู ุฃุฌูุจ
162
00:17:12,980 --> 00:17:20,180
ุงู YP1 ูุจูู YP1 ูุณุงูู X to the power S ูููุ ูุฐู
163
00:17:20,180 --> 00:17:21,740
polynomial ู
ู ุงูุฏุฑุฌุฉ
164
00:17:34,810 --> 00:17:40,490
ูู ุงู term ู
ู ููุง ูุดุจู
165
00:17:40,490 --> 00:17:42,250
ุงู term ูููุ
166
00:17:45,280 --> 00:17:52,060
ู
ุถุฑููุฉ ูุนูู ูุฐุง C1 E2 X ู C2 X E2 ูููุ ู
ุงุนูุฏูุด
167
00:17:52,060 --> 00:17:56,020
exponential ููุงู ุจู
ุงููุด ูุจุฌู ููุง S ุจูุฏุฑ ุงููุ ุจ
168
00:17:56,020 --> 00:18:03,680
Zero ูุจุฌู here ุงู S ุชุณุงูู Zero ูุจุฌู ุฃุตุจุญ Y P1 ุจุฏู
169
00:18:03,680 --> 00:18:11,780
ูุณุงูู A0 X ุชุฑุจูุน ุฒุงุฆุฏ A1 X ุฒุงุฆุฏ A2 ุณูุจููุง ู
ู ูุฐุง
170
00:18:11,780 --> 00:18:20,370
ููุชูู ุนูู ุงููู ุจุนุฏูุงูุจูู ุจุฏู ุฃูุชุจ ูุจูู
171
00:18:20,370 --> 00:18:23,230
ุจุฏู ุฃูุชุจ polynomial ู
ู ุงูุฏุฑุฌุฉ ุงูุฃููู ูู ุงูู
172
00:18:23,230 --> 00:18:26,990
exponential ูุจูู ุจุฏู ุฃูุชุจ polynomial ู
ู ุงูุฏุฑุฌุฉ
173
00:18:26,990 --> 00:18:32,070
ุงูุฃููู ูู ุงูู exponential ูุจูู ุจุฏู ุฃูุชุจ polynomial
174
00:18:32,070 --> 00:18:34,410
ู
ู ุงูุฏุฑุฌุฉ ุงูุฃููู ูู ุงูู exponential ูุจูู ุจุฏู ุฃูุชุจ
175
00:18:34,410 --> 00:18:37,350
polynomial ู
ู ุงูุฏุฑุฌุฉ ุงูุฃููู ูู ุงูู exponential
176
00:18:37,350 --> 00:18:37,350
ูุจูู ุจุฏู ุฃูุชุจ polynomial ู
ู ุงูุฏุฑุฌุฉ ุงูุฃููู ูู ุงูู
177
00:18:37,350 --> 00:18:37,390
exponential ูุจูู ุจุฏู ุฃูุชุจ polynomial ู
ู ุงูุฏุฑุฌุฉ
178
00:18:37,390 --> 00:18:38,650
ุงูุฃููู ูู ุงูู exponential ูุจูู ุจุฏู ุฃูุชุจ polynomial
179
00:18:38,650 --> 00:18:38,870
ู
ู ุงูุฏุฑุฌุฉ ุงูุฃููู ูู ุงูู exponential ูุจูู ุจุฏู ุฃูุชุจ
180
00:18:38,870 --> 00:18:39,870
polynomial ู
ู ุงูุฏุฑุฌุฉ ุงูุฃููู ูู ุงูู exponential
181
00:18:39,870 --> 00:18:40,510
ูุจูู ุจุฏู ุฃูุชุจ polynomial ู
ู ุงูุฏุฑุฌุฉ ุงูุฃููู ูู ุงูู
182
00:18:40,510 --> 00:18:42,530
exponential ูุจูู ุจุฏู ุฃูุชุจ polynomial ู
ู ุงูุฏุฑุฌุฉ ุงูุฃ
183
00:18:42,560 --> 00:18:55,400
ูู ูุฌุจ ุฃู ุฃุบุทู X to the power S ููู ูุฌุจ ุฃู ุฃุบุทู X
184
00:18:55,400 --> 00:18:56,780
to the power S ููู ูุฌุจ ุฃู ุฃุบุทู X to the power S
185
00:18:56,780 --> 00:18:58,460
ููู ูุฌุจ ุฃู ุฃุบุทู X to the power S ููู ูุฌุจ ุฃู ุฃุบุทู X
186
00:18:58,460 --> 00:18:58,680
to the power S ููู ูุฌุจ ุฃู ุฃุบุทู X to the power S
187
00:18:58,680 --> 00:18:58,680
ููู ูุฌุจ ุฃู ุฃุบุทู X to the power S ููู ูุฌุจ ุฃู ุฃุบุทู X
188
00:18:58,680 --> 00:18:58,680
to the power S ููู ูุฌุจ ุฃู ุฃุบุทู X to the power S
189
00:18:58,680 --> 00:18:58,680
ููู ูุฌุจ ุฃู ุฃุบุทู X to the power S ููู ูุฌุจ ุฃู ุฃุบุทู X
190
00:18:58,680 --> 00:18:58,680
to the power S ููู ูุฌุจ ุฃู ุฃุบุทู X to the power S
191
00:18:58,680 --> 00:18:59,380
ููู ูุฌุจ ุฃู ุฃุบุทู X to the power S ููู ูุฌุจ ุฃู ุฃุบุทู X
192
00:18:59,380 --> 00:19:03,500
to the power S ููู ูุฌุจ ุฃู ุฃุบุทู X to the powerุทุจ
193
00:19:03,500 --> 00:19:10,940
ุจุฏู ุงุญุท S ุจูุฏุงุดุ ุจูุงุญุฏ ูู ุญุทูุช S ุจูุงุญุฏ ุจุตูุฑ B0 X
194
00:19:10,940 --> 00:19:15,420
ุชุฑุจูุฉ ูู ุงู exponential ููู ููู ุฒููุง ุทูุจ ูุดูู ูุฐู
195
00:19:15,420 --> 00:19:21,930
B1 X ูู ุงู exponentialูู ุฒููุง ูุจูู S ุชุณุงูู ูุงุญุฏ ู
ุด
196
00:19:21,930 --> 00:19:26,830
ุตุญูุญุฉ ูุจูู ุงุญุท S ุจูุฏุฑุด ุฅุฐุง ูู ุญุทูุช ุงู S ุจุงุชููู
197
00:19:26,830 --> 00:19:31,210
ุจูุถู ูู ุงูุฏู ุชุดุงุจู ูุจูู ุงุชูุงููู ูุจูู ุจูููู here
198
00:19:31,210 --> 00:19:39,310
ููุง ุงู S ุชุณุงูู ุงุชููู ูุจูู ุงุตุจุญ Y P2 ุจุฏู ุณุงูู P0 X
199
00:19:39,310 --> 00:19:47,370
ุชููุจ ุฒู P1 X ุชุฑุจูุน ููู ูู ุงู E ุฃุณ ุงุชููู Xูุนูู ุดููุช
200
00:19:47,370 --> 00:19:51,030
ุงู S ู ุญุทูุช ู
ูุงู ุงุชููู ุตุงุฑุช X ุชุฑุจูุน ุถุฑุจุช ูููู ูู
201
00:19:51,030 --> 00:19:55,090
ุงููู ุฌูุง ูุตุงุฑุช ุนูู ุงูุดูู ุงููู ุนูุฏูุง ุจุฏุงุฎู ุงูู
ุนุงุฏูุฉ
202
00:19:55,090 --> 00:20:08,900
ุงูุชุงูุชุฉุงูู YP3 ุจุฏู ุฃูุชุจ
203
00:20:08,900 --> 00:20:12,180
polynomial ู
ู ุงูุฏุฑุฌุฉ ุงูุฃููู ูู ุงูู cosine ุฒู
204
00:20:12,180 --> 00:20:15,160
polynomial ู
ู ุงูุฏุฑุฌุฉ ุงูุฃููู ูู ุงูู sine
205
00:20:18,960 --> 00:20:23,360
ูุจูู ุจุฏุฃ ูุงุฎุฏูุง ููุง ูู ุณููุงุช ูุงูุณููุงุช ูุฃ ูู
ุงู ุจุฏู
206
00:20:23,360 --> 00:20:28,860
ุงููู ุฏู ุง ุจุฏู ุงููู X to the power S ูู ุงูุฃูู X to
207
00:20:28,860 --> 00:20:34,700
the power S ููู ุงูุขู ุจุฏู ุงููู ุฏู ูุงุฏุฉ
208
00:20:37,040 --> 00:20:47,000
ูู ูุฐุง ุงูููุงู
ู
ุถุฑูุจ ูู cosine 2x ุฒุงุฆุฏ e node x
209
00:20:47,000 --> 00:20:53,980
ุฒุงุฆุฏ e1 ููู ู
ุถุฑูุจ ูู sin 2x ู exponential ู
ุงุนูุฏูุด
210
00:20:56,240 --> 00:21:03,100
ูู ุงู term ู
ู ุงูู
ุณุชุทูู ุงููู ููู ูุฐุง ูุดุจู ุฃู term
211
00:21:03,100 --> 00:21:07,720
ู
ู ุงูู
ุณุชุทูู ุงููู ููู ูุฐุงุ ูุฃ ููุง ููู sign ููุง ูู
212
00:21:07,720 --> 00:21:08,120
ุณุงูู
213
00:21:13,370 --> 00:21:20,650
ุงูู S ุจุฏูุง ุชุณุงูู 0 ูุจูู ุฃุตุจุญ YP3 ุจุฏูุง ุชุณุงูู D node
214
00:21:20,650 --> 00:21:32,590
X ุฒุงุฆุฏ D1 ูู Cos 2X ุฒุงุฆุฏ E node X ุฒุงุฆุฏ E1 ูู Sin
215
00:21:32,590 --> 00:21:38,120
2Xูุจูู ุงูู Particular solution ุงููู ุจุฏูุง ูุง ุจูุงุช
216
00:21:38,120 --> 00:21:47,060
ูุจูู ูุณุงูู YP1 ุฒุงุฆุฏ YP2 ุฒุงุฆุฏ YP3 ูุจูู ุฃุตุจุญ YP
217
00:21:47,060 --> 00:21:55,380
ูุณุงูู YP1 ูุงู ู ุจูุฒูู ุฒู ู
ุง ูู A0 X ุชุฑุจูุน A1X ุฒุงุฆุฏ
218
00:21:55,380 --> 00:21:57,580
A2 ุฒุงุฆุฏ
219
00:22:19,860 --> 00:22:21,260
YP2YP3YP4YP5YP6YP7
220
00:22:29,550 --> 00:22:36,330
ูุจูู ูุฐุง ููู ูุนุชุจุฑ ู
ู ุงู particular solution ุงููู
221
00:22:36,330 --> 00:22:41,990
ู
ุทููุจ ุนููุง ุญุฏ ููููุง ูุงูู ุชุณุงุคู ููุง ูู ูุฐุง ุงูุณุคุงูุ
222
00:22:41,990 --> 00:22:48,270
ูู ุงู ุชุณุงุคูุุทูุจ ุนูู ููู ุงูุชูู ูุฐุง ุงู section ูุฅูู
223
00:22:48,270 --> 00:22:55,590
ูููู ุฃุฑูุงู
ุงูู
ุณุงุฆู ูุจูู exercises ุฎู
ุณุฉ ุณุจุนุฉ
224
00:22:55,590 --> 00:23:01,730
ุงูู
ุณุงุฆู ุงูุชุงููุฉ ู
ู ูุงุญุฏ ูุบุงูุฉ ุนุดุฑูู ูู
ู ุฎู
ุณุฉ
225
00:23:01,730 --> 00:23:08,730
ูุนุดุฑูู ูุบุงูุฉ ุชูุงุชูู ู
ุฑูู
226
00:23:08,730 --> 00:23:13,530
ุฃุฏููู ูุฏ ู
ุง ุชูุฏุฑู ุจุชุตูุฑ ูุฐุง ุงูู
ูุถูุน ุจุตูุฑ ุฌุฏุง
227
00:23:26,290 --> 00:23:49,450
ุงููู ููู ูุฐุง ุงูุชูููุง ู
ูู ุงุธู ุฎูุงุตุ
228
00:23:49,450 --> 00:23:55,440
ุทูุจูู
ุง ููุชูู ุฅูู ุงู section ุงูุฃุฎูุฑ ู
ู ูุฐุง ุงู
229
00:23:55,440 --> 00:24:00,320
chapter ููู ุงูุทุฑููุฉ ุงูุซุงููุฉ ู
ู ุทุฑู ุญู ุงู non
230
00:24:00,320 --> 00:24:03,800
homogeneous differential equation ููู ุทุฑููุฉ ุงู
231
00:24:03,800 --> 00:24:11,280
variation of parameters ุชุบููุฑ ุงููุณูุทุงุช ูุจูู 85 ุฃู
232
00:24:11,280 --> 00:24:19,340
58 ุงููู ูู variation of
233
00:24:20,530 --> 00:24:29,030
Parameters ูุณุชุฎุฏู
234
00:24:29,030 --> 00:24:39,410
ูุฐู ุงูุทุฑููุฉ ูุณุชุฎุฏู
ูุฐู ุงูุทุฑููุฉ to find a
235
00:24:39,410 --> 00:24:45,850
particular solution to find a particular
236
00:24:54,020 --> 00:24:58,120
YP ุงูุฑู
ุฒ ููุฅููุงุน
237
00:25:01,140 --> 00:25:07,280
Differential equation ููู
ุนุงุฏูุฉ ุงูุชูุงุถููุฉ a0 as a
238
00:25:07,280 --> 00:25:14,040
function of x ุฒุงุฆุฏ ุงู a1 as a function of x ูู
239
00:25:14,040 --> 00:25:21,470
derivative n minus l1ุฒุงุฆุฏ ูุจูู ู
ุงุดู ูุบุงูุฉ a n
240
00:25:21,470 --> 00:25:27,750
minus one as a function of x y prime ุฒุงุฆุฏ a n as a
241
00:25:27,750 --> 00:25:33,130
function of x ูู ุงู y ุจุฏู ูุณุงูู capital F of x
242
00:25:33,130 --> 00:25:36,790
ููุฐู ุงููู ููุง ุจูุทูู ุนูููุง ุงูู
ุนุงุฏูุฉ ุงูุฃุตููุฉ ุงููู ูู
243
00:25:36,790 --> 00:25:46,210
starwhere ุญูุซ ุงู a node of x ู ุงู a one of x ู
244
00:25:46,210 --> 00:25:54,330
ูุบุงูุฉ ุงู a n of x ูุฏูู ูููู
need not need not
245
00:25:54,330 --> 00:26:00,510
constants need
246
00:26:00,510 --> 00:26:09,410
not constants and no restrictionู
ุงุนูุฏูุด ูููุฏ
247
00:26:09,410 --> 00:26:24,010
ู
ุงุนูุฏูุด
248
00:26:24,010 --> 00:26:24,850
ูููุฏ ุนูููุง
249
00:26:33,720 --> 00:26:46,600
YC ูุจุฏู ูุณุงูู C1Y1 ุฒุงุฆุฏ C2Y2 ุฒุงุฆุฏ CNYN Assume that
250
00:26:46,600 --> 00:26:57,440
is a solution of the homo
251
00:27:10,960 --> 00:27:16,840
ุฒุงูุฏ ุฒุงูุฏ a n minus 1 as a function of x ูู ุงู y
252
00:27:16,840 --> 00:27:23,680
prime ุฒุงูุฏ a n of x y ุจุฏู ูุณุงูู ูุฏูุ ุจุฏู ูุณุงูู 0
253
00:27:29,020 --> 00:27:32,880
to get a
254
00:27:32,880 --> 00:27:37,540
particular solution
255
00:27:37,540 --> 00:27:46,180
to get a particular solution yp of the
256
00:27:46,180 --> 00:27:56,140
differential equation star by the method
257
00:27:59,990 --> 00:28:07,590
of variation of
258
00:28:07,590 --> 00:28:20,570
parameters replace
259
00:28:20,570 --> 00:28:32,010
ุงุณุชุจุฏู replace the above constantsabove constants
260
00:28:32,010 --> 00:28:42,250
in
261
00:28:42,250 --> 00:28:48,930
the solution yc
262
00:28:48,930 --> 00:28:52,550
by the functions
263
00:28:55,020 --> 00:29:10,660
The functions C1 of X C2 of X ู ูุบุงูุฉ CN of X That
264
00:29:10,660 --> 00:29:11,060
is
265
00:29:15,470 --> 00:29:25,490
YP ูุตุจุญ ุนูู ุงูุดูู ุงูุชุงูู C1 of XY1 C2 of XY2 ุฒุงุฆุฏ
266
00:29:25,490 --> 00:29:29,470
CN of XYN
267
00:29:35,370 --> 00:29:44,010
ุงูู CM as a function of X ูุณูู ุชูุงู
ู ุงููุฑูุณููู M
268
00:29:44,010 --> 00:29:51,350
as a function of X ูู capital F1 of X ุนูู
269
00:29:51,350 --> 00:29:59,090
ุงููุฑูุณููู of X ููู ุจุงููุณุจุฉ ุฅูู DX ูุงูู M
270
00:30:02,270 --> 00:30:09,990
ู ูุบุงูุฉ ุงู N ู
271
00:30:09,990 --> 00:30:14,950
ูุบุงูุฉ
272
00:30:14,950 --> 00:30:21,750
ุงู N ู ูุบุงูุฉ ุงู N ู ูุบุงูุฉ ุงู N ู ูุบุงูุฉ ุงู N
273
00:30:28,070 --> 00:30:34,350
is the determinant ุงูู
ุญุฏุฏ
274
00:30:34,350 --> 00:30:41,370
obtained from
275
00:30:41,370 --> 00:30:46,810
ุงููุงูุณููู
276
00:30:46,810 --> 00:30:52,130
of X by replacing
277
00:30:58,290 --> 00:31:15,810
By replacing the M column By the column By
278
00:31:15,810 --> 00:31:26,730
the column Zero Zero ููุธู ู
ุงุดููู ูุบุงูุฉ ุงููุงุญุฏ and
279
00:31:30,230 --> 00:31:42,150
ุงูู F1 of X ุชุณุงูู ุงูู F of X ู
ูุณูู
ุฉ ุนูู A0 of X
280
00:31:42,150 --> 00:31:45,550
Note
281
00:31:45,550 --> 00:31:50,310
When
282
00:31:50,310 --> 00:32:00,490
we use the method when weuse the method of
283
00:32:00,490 --> 00:32:05,590
variation
284
00:32:05,590 --> 00:32:15,910
of parameters ุนูุฏู
ุง
285
00:32:15,910 --> 00:32:23,110
ูุณุชุฎุฏู
ูุฐู ุงูุทุฑููุฉ variation of parameters the
286
00:32:23,110 --> 00:32:23,850
coefficient
287
00:32:33,870 --> 00:32:45,010
ูุฌุจ ุงู ูููู ููู
ู ููู
ู
288
00:32:45,010 --> 00:32:47,290
ููู
ู ููู
ู ููู
ู ููู
ู ููู
ู ููู
ู ููู
ู
289
00:32:58,790 --> 00:33:11,670
is of the second order
290
00:33:11,670 --> 00:33:14,970
that
291
00:33:14,970 --> 00:33:18,690
is
292
00:33:20,880 --> 00:33:30,340
ุงูู a0 of x yw prime a1 of x y prime a2 of x y
293
00:33:30,340 --> 00:33:35,420
ุจุฏูุง ุชุณุงูู f
294
00:33:35,420 --> 00:33:50,710
of x and f y1 and y2 are two solutionsare two
295
00:33:50,710 --> 00:33:57,990
solutions of
296
00:33:57,990 --> 00:34:12,570
the homogeneous equation a0 of x yw prime a1 of x
297
00:34:12,570 --> 00:34:18,570
y prime a2 of x y ุจุฏู ูุณุงูู zero then
298
00:34:23,050 --> 00:34:33,070
ุงูู C1 of X ูู ุชูุงู
ู ููุงูุต Y2 as a function of X
299
00:34:33,070 --> 00:34:39,550
ูู ุงูู F1 of X ุนูู ุฑููุณููู X DX
300
00:34:43,770 --> 00:34:51,950
ุงูู C2 as a function of X ุจุฏู ูุณุงูู ุชูุงู
ู ูู
ููุ
301
00:34:51,950 --> 00:34:58,690
ุจุฏู ูุณุงูู ุชูุงู
ู ููู Y1 as a function of X ูู ุงูู
302
00:34:58,690 --> 00:35:05,170
F1 of X ููู ุนูู ุงูู run skin of X ูู ุงูู DX
303
00:35:05,170 --> 00:35:10,030
example
304
00:35:10,030 --> 00:35:10,490
1
305
00:35:15,200 --> 00:35:26,200
Find the general solution of
306
00:35:26,200 --> 00:35:32,340
the differential equation ููู
ุนุงุฏูุฉ
307
00:35:32,340 --> 00:35:38,340
ุงูุชูุงุถููุฉ YW'-2Y
308
00:35:43,090 --> 00:35:51,990
ููู
ุนุงู
ูุฉ ุงูุชุญูู ุนุถููุฉ y
309
00:35:51,990 --> 00:36:03,650
triple prime ุฒุงุฆุฏ y prime ุจุฏู ูุณุงูู ุณูู x ุจูุณุงูู
310
00:36:03,650 --> 00:36:12,610
ุณูู x ููุงูุต y ุนูู 2 ุฃูู ู
ู x ุฃูู ู
ู y ุนูู 2
311
00:37:01,140 --> 00:37:06,600
ุงูุทุฑููุฉ ุงูุซุงููุฉ ู
ู ุญู ุงูู
ุนุงุฏูุฉ ุงูุชูุงุถููุฉ ุบูุฑ
312
00:37:06,600 --> 00:37:11,260
ุงูู
ุชุฌุงูุณุฉ ูุฐู ุงูุทุฑููุฉ ุณู
ููุง ุงู variation of
313
00:37:11,260 --> 00:37:14,940
parameters ูุจูู ุฃูู ุทุฑููุฉ ุทุฑููุฉ ุงู undetermined
314
00:37:14,940 --> 00:37:18,380
coefficients ูุงูุทุฑููุฉ ุงูุซุงููุฉ ุงูุชู ูู ุทุฑููุฉ ุงู
315
00:37:18,380 --> 00:37:23,200
variation of parameters ุชุบููุฑ ุงููุณูุทุงุช ุชุชูุฎุต ูุฐู
316
00:37:23,200 --> 00:37:26,740
ุงูุทุฑููุฉ ููู
ุง ูุฃุชูุทุจุนุง ุงูู Undetermined
317
00:37:26,740 --> 00:37:30,880
coefficients ูููุง ู
ุดุงู ูุดุชุบู ุจูุง ุจุฏูู ุดุฑุทูู ุงู
318
00:37:30,880 --> 00:37:34,860
ุงูู
ุนุงู
ูุฉ ุชุซูุงุจุช ู ุงู F of X ุชุจูู ุนูู ุดูู ู
ุนูู ุญุณุจ
319
00:37:34,860 --> 00:37:37,660
ุงูุฌุฏูู ุงููู ุงุนุทุงูุงููุง ูุนููุ ู
ุธุจูุทุ ููุง ุงู
320
00:37:37,660 --> 00:37:41,460
variation ุจููููู ูุฃ ุงูู
ุนุงู
ูุฉ ุชุซูุงุจุช ู ุงููู ู
ุชุบูุฑุฉ
321
00:37:41,460 --> 00:37:45,660
ู
ุงุนูุฏูุด ู
ุดููุฉ ุงู F of X ุงููู ูู ุงูุทุฑู ุงููู
ูู ูุฐู
322
00:37:45,660 --> 00:37:49,180
ุงู F of X ูุงูุช ุนูู ุดูู ู
ุนูู ู ุงููู ุบูุฑ ุนูููุง ุดูู
323
00:37:49,180 --> 00:37:53,590
ู
ุนูู ู
ุงุนูุฏูุด ู
ุดููุฉูุนูู ุฃูุด ู
ุง ูููู ุดูู ุงู F ูููู ู
324
00:37:53,590 --> 00:37:56,590
ุฃูุด ู
ุง ูููู ุงูู
ุนุงู
ูุฉ ุซูุฉ ุจุทููุฉ ู
ุชุบูุฑุงุช ู
ุงุนูุฏูุด
325
00:37:56,590 --> 00:38:00,970
ู
ุดููุฉ ูุจูู ูุฐุง ุงูุดูู ุงูุนุงู
ู ุงูู
ุนุงุฏู ุฃุณุทุงุฑ ุญูุซ ูุฏูู
326
00:38:00,970 --> 00:38:05,350
ุงูุฏูู ููุฉ not ููุตุฉ ููุณ ุจุงูุถุฑูุฑุฉ ูููููุง ููุตุฉ ูุนูู
327
00:38:05,350 --> 00:38:08,470
ู
ู
ูู ูููููุง ููุตุฉ ู ู
ู
ูู ูููููุง ู
ุชุบูุฑุงุช ู
ุงุนูุฏูุด
328
00:38:08,470 --> 00:38:12,070
ู
ุดููุฉ ูู ูุฐู ุงูุนุงูู
and
329
00:38:13,430 --> 00:38:18,250
and no restrictions
330
00:38:18,250 --> 00:38:23,170
ู
ุงุนูุฏูุด ูููุฏ ุนูู ุดูู ุงู F of X ูู ุงู Undetermined
331
00:38:23,170 --> 00:38:25,650
ููุช ูุงุจูููููู
ูู ูุงุจูููููู
ูู ูู ุงูุงูุณุจููููุด
332
00:38:25,650 --> 00:38:28,830
ูุงุจูููููู
ูู ูู ุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู
333
00:38:28,830 --> 00:38:33,850
ุงูุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู
334
00:38:33,850 --> 00:38:35,710
ุงูุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู
335
00:38:35,710 --> 00:38:36,610
ุงูุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู
336
00:38:36,610 --> 00:38:37,770
ุงูุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู
337
00:38:37,770 --> 00:38:38,170
ุงูุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู
338
00:38:38,170 --> 00:38:40,250
ุงูุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู ุงูุงูุณุจููููุด ูู
339
00:38:40,250 --> 00:38:45,310
ุงูุงูุณุจููููุด ูู ุงูุงูุณูุฐุง ุงูุดุบู ุงููุญูุฏ ุงููู ูู ุงูุญู
340
00:38:45,310 --> 00:38:47,610
ุงููComplementary Solution ุจุฏู ุฃุฏูุฑ ุนูู ุงูู
341
00:38:47,610 --> 00:38:51,270
Particular Solution ุชุจุน ุงูู
ุนุงุฏูุฉ ู
ููุ ุชุจุน ุงูู
ุนุงุฏูุฉ
342
00:38:51,270 --> 00:38:55,570
Star ูุจุฌู ุจููู ุจุฏู ุฃูุชุฑุถ ุงูุญู ุจุทุฑููุฉ ุงู version of
343
00:38:55,570 --> 00:38:59,870
parameters ูู ููุณ ุงูุญู ูุฐุง ุจุณ ุจุฏู ุฃุดููู ุซูุงุจุช ู
344
00:38:59,870 --> 00:39:04,230
ุฃุถุน ุจุฏููู
ุฏูุงู ูู X ูุจูู Star ุดูู ุงู Particular
345
00:39:04,230 --> 00:39:09,490
Solution ูู C1 of X Y1 ุฒุงุฆุฏ C2 of X Y2 ุฒุงุฆุฏ ุฒุงุฆุฏ
346
00:39:09,490 --> 00:39:14,560
CN ูA of X YNุทูุจ ู
ูู ูู ุงููC ูุงุช ููู ุจุฏู ุฃุญุณุจูุง
347
00:39:14,560 --> 00:39:19,980
ูุฐูุ ุจุนุฏ ุดููุฉ ุญุณุงุจุงุช ูุฌููุง ูู ูุงุนุฏุฉ ุจูุงุณุทุชูุง ุจุฌูุจ
348
00:39:19,980 --> 00:39:25,320
ูู ุฏุงูุฉ ู
ู ูุฐู ุงูุฏููุฉ ู
ูู ููุ ูุงุนุฏุฉ CM of XM ุทุจุนุง
349
00:39:25,320 --> 00:39:29,500
ุจูุงุญุฏ ูุงุซููู ูุบุงูุฉ ุงู N ูุนูู ุจC ูุงุญุฏ ูC ุงุชููู ูC
350
00:39:29,500 --> 00:39:34,890
ุชูุงุชุฉ ูุฏู ุงูุงุฎุฑูููุณุงูู ุงูู Ronschen M F1 of X ุนูู
351
00:39:34,890 --> 00:39:38,530
Ronschen of X DX ูุฌู ุนูู ุงูู Ronschen of X ุงูู
352
00:39:38,530 --> 00:39:42,330
Ronschen ูุฐุง ุงูุชุงุจุน ุงูุญููู ุงููู ูู ุงูุญุงูุฉ ุงูุฃููู
353
00:39:42,330 --> 00:39:46,190
Y1 ู Y2 ู YN ุจุฌูุจ ุงููู ูู
ุงูู Ronschen ุจูููู ูุฐุง
354
00:39:46,190 --> 00:39:50,140
ูู ุงูู Ronschen ุชุจุน ุญุตูู ุนูู ุดุฌุฑุฉุจุฏู ุฑููุณููู 1 ู
355
00:39:50,140 --> 00:39:54,760
ุฑููุณููู 2 ู ุฑููุณููู 3 ูุบุงูุฉ ุฑููุณููู N ู
ูู ูู ูุฐุงุ
356
00:39:54,760 --> 00:39:58,720
ูุฐุง ุงู ุฑููุณููู 1 ุจุงุฌู ุนูู ุงู ุฑููุณููู ู ุฏู ุจุดูู
357
00:39:58,720 --> 00:40:02,880
ุงูุนู
ูุฏ ุงูุฃูู ู ุจุญุท ุจุฏุงูู ุงูุนู
ูุฏ ูุฐุง ู ุจุญุณุจ ูุฏุงุด
358
00:40:02,880 --> 00:40:07,890
ููู
ุฉ ุงู ุฑููุณููู ุทุจ ุจุฏู ุฑููุณููู 2ุจุณูุจ ุงูุฑููุณููู ูุฐุง
359
00:40:07,890 --> 00:40:13,670
ุฒู ู
ุง ูู ู ุจุฌู ุนูู ุงูุนู
ูุฏ ุงูุซุงูู ุจุดููู ููู ู ุจุญุท
360
00:40:13,670 --> 00:40:16,810
ุจุฏุงูู ุงูุนู
ูุฏ ูุฐุง ู ููุฐุง ุงูุฑููุณููู ุซูุงุซุฉ ุฑููุณููู
361
00:40:16,810 --> 00:40:21,210
ูุบุงูุฉ ุจูู
ููู
ูููู
ูุจูู ูู ูุฐู ุงูุญุงูุฉ ุฌุจุชูุง ุทุจ ู
ูู
362
00:40:21,210 --> 00:40:25,850
ูู ุงู F1 ูุฐูุ ุงู ุงู F1 ูุฐู ูู
ุง ุชูุฌู ุงูู
ุนุงุฏูุฉ ุจุฏ
363
00:40:25,850 --> 00:40:30,310
ุงูู
ุนุงุฏูุฉ ููุง ุงูู
ุนุงู
ู ุชุจุนู ูููู ุฌุฏูุดูุฐุง ูุนูู ุฃููู
364
00:40:30,310 --> 00:40:36,110
ุฃุฌุณู
ุงูุทุฑููู ุนูู ู
ูู ุนูู a node of x ูุจูู ุงู F1 ูู
365
00:40:36,110 --> 00:40:42,270
ุนุจุงุฑุฉ ุนู Fx ู
ูุณูู
ุฉ ุนูู ุงู a node of x ูุจูู ุงู F1
366
00:40:42,270 --> 00:40:47,270
of x ูู ุงู F of x ู
ูุณูู
ุฉ ุนูู ู
ูู ุนูู ุงู a node of
367
00:40:47,270 --> 00:40:52,490
x ุฃุตูุง ูุงุถุญ ููุงู
ูุฐุง ุทูุจ ุงูุขู ูู ู
ูุงุญุธุฉ ุจุฏูุง ูุดูุฑ
368
00:40:52,490 --> 00:40:57,290
ุฅูููุง ุงูู
ูุงุญุธุฉ ูุงูุช ุชุงููุฉููุชูุง ุจุณ ุจุฏูุง ูุนูุฏูุง ููุง
369
00:40:57,290 --> 00:41:00,590
ุนูุฏู
ุง ูุณุชุฎุฏู
ุงู variation of parameters ูุงุฒู
ูููู
370
00:41:00,590 --> 00:41:05,610
ุงูู
ุนุงู
ู ุชุจุน Y ุงู ูู ู
ูู ู ุงูุณูุช ู ุญุทูุช ุงู F of X
371
00:41:05,610 --> 00:41:11,110
ูุฐู ุจุฏู ูุฐู ุจุตูู ููุงู
ู ุบูุท ุจุตูู ุชุญููุด ู ู
ุงุชูุฏุฑุด
372
00:41:11,110 --> 00:41:16,250
ุชุชูุงู
ูู ุชู
ุงู
ูุจูู ุชุชุฃูุฏู ุนูุฏู
ุง ุจุฏู ุชุณุชุฎุฏู
ุงูุชูุงู
ู
373
00:41:16,250 --> 00:41:20,390
ุจุชุฎูู ุงูู
ุนุงู
ู ุชุจุน Y to the derivative ุงู ูู ูุงุญุฏ
374
00:41:20,390 --> 00:41:24,610
ุตุญูุญ ุชู
ุงู
ูู ูุทุจุฉ ุงูุฃููู ุจุนุฏูู ูููุง ู
ูุงุญุธุฉ ุชุงููุฉ
375
00:41:25,260 --> 00:41:28,720
ุจูููู ุงู equation star ูุฐู ูู ูุงูุช ู
ู ุงูุฑุชุจุฉ
376
00:41:28,720 --> 00:41:32,680
ุงูุซุงููุฉ ูุจูู ุจุฏู ุงูุฑููุณููู 1 ู ูุต ููุชูุง ู
ุญุณุจุฉ ู
377
00:41:32,680 --> 00:41:38,320
ุฎุงูุตุฉ ู ุฌุงูุฒุฉ ุงูุดู ุจูููู ุงู C 1 of X ุจุชุญุท ููุญู
378
00:41:38,320 --> 00:41:42,940
ุงูุชุงูู ุจุฅุดุงุฑุฉ ุณุงูุจ ูู ุงู F 1 of X ุนูู ุงูุฑููุณููู of
379
00:41:42,940 --> 00:41:48,260
X ุทูุจ ู ุงู C2ุ ู ุงู C2 ูู ุงูุญู ุงูุฃูู ูู ุงู 1 of X
380
00:41:48,260 --> 00:41:51,850
ุนูู ู
ููุ ุนูู ุงู W of Xูุจูู ูู
ุงู ูุงุจุฏ ุชุญุณุจ
381
00:41:51,850 --> 00:41:54,950
ุงูููุฑูููุณูู ูุฃ ูุฐุง ุฅู ูุงูุช ู
ู ุงูุฑุชุจุฉ ุงูุซุงููุฉุ ู
ู
382
00:41:54,950 --> 00:41:59,930
ุงูุฑุชุจุฉ ุงูุชุงูุชุฉุ ุจุฏู ุฃุฑุฌุน ุนุงูู
ูุง ููููุงู
ุงูุฃููุ ูุงุถุญ
383
00:41:59,930 --> 00:42:03,590
ููุงู
ูููุ ุงูุฃู
ู ุงููู ุญุทูู ุนูู ุฃุฑุถ ูุงูุนุฉ ุฌุงูู ูุญู
384
00:42:03,590 --> 00:42:08,430
ุงูู
ุนุงุฏูุฉ ูุฐูุจูููู ุชู
ุงู
ูุจูู ุงูุง ุจุฏู ุงุจุฏุง ุจุญู ุงู
385
00:42:08,430 --> 00:42:12,190
homogenous differential equation ูู
ุง ููุง ู
ู ูุจู
386
00:42:12,190 --> 00:42:19,470
ูุจูู ุจุงุฌู ุจูููู ููุง let Y ุชุณุงูู E ุฃูุณ RX ุจูู
387
00:42:19,470 --> 00:42:21,090
solution
388
00:42:27,760 --> 00:42:36,620
ูุจูู ููุง the characteristic equation is R ุชูุนูุจ
389
00:42:36,620 --> 00:42:42,820
ุฒุงุฆุฏ R ูุณุงูู 0ูุจูู R ูู R ุชุฑุจูุน ุฒุงุฆุฏ ูุงุญุฏ ุจุฏู
390
00:42:42,820 --> 00:42:49,640
ูุณุงูู Zero ูุจูู R ุชุณุงูู Zero ูR ุชุณุงูู ุฒุงุฆุฏ ุงู ูุงูุต
391
00:42:49,640 --> 00:42:54,680
I ูุจูู ุจูุงุก ุนููู ุจูููู ุงู complementary solution
392
00:42:54,680 --> 00:43:06,080
YC ุจุฏู ูุณุงูู C ูุงุญุฏ ูู ุงู E ุงู Zeroุฒุงุฆุฏ C2 Cos X
393
00:43:06,080 --> 00:43:12,420
ุฒุงุฆุฏ C3 Sin X ูุฃูู ุฒุงุฏุฉ ูููุต I ุงู A ุจุงูุฒูุฑู ูุงูB
394
00:43:12,420 --> 00:43:18,860
ุจุงูู
ูู ุจูุงุญุฏ ูุจูู ูุฐุง ุงูุดูู ุงูู
ุนุงุฏูุฉ
395
00:43:18,860 --> 00:43:24,210
ุงูุฃุตููุฉ ุจูุงุชูุง ุฏู ุณู
ููุง ุงู starุงูุงู ุงูุง ุจุฏู ุงูุชุจ
396
00:43:24,210 --> 00:43:30,330
ุดูู ุงู particular solution ููู
ุนุงุฏูุฉ star ู ูุงุญุธู
397
00:43:30,330 --> 00:43:34,890
ุงู ุงูู
ุนุงู
ู ุชุจุน ุงูู
ุดุชูุฉ ุงูุฃููู ูู ูุงุญุฏ ุตุญูุญ ุงูู
ุฑุฉ
398
00:43:34,890 --> 00:43:39,210
ูุฐู ูุนูู ูุง ูู ูู ููุง ุฏูุฑ ุนู ุงูุดุบู ู
ุจุงุดุฑ ูู ูุฐุง
399
00:43:39,210 --> 00:43:47,730
ุงูุณุคุงู ูุจูู ุจุงุฌู ุจูููู the particular solution
400
00:43:47,730 --> 00:43:50,430
of
401
00:44:02,410 --> 00:44:12,710
ูุจูู C1 of X ุฒุงุฆุฏ C2 of X ูู Cos X ุฒุงุฆุฏ C3 of X ูู
402
00:44:12,710 --> 00:44:20,090
Sin Xุจุนุฏ ููู ุจุชุฑูุญ ุงุฌูุจ ุงูุฑููุณููู ูุจูู ูุฐุง
403
00:44:20,090 --> 00:44:25,810
ุงูุฑููุณููู as a function of x ูู
ูู ุงูุฑููุณููู ููุญููู
404
00:44:25,810 --> 00:44:31,670
ุงูุชูุงุชุฉ ุงูุญู ุงูุฃูู ูุฏุงุด ููุง ุจูุงุช ูุงุญุฏ ูุงูุญู ุงูุชุงูู
405
00:44:31,670 --> 00:44:36,690
cosine ุงู X ูุงูุญู ุงูุชุงูุช sin X ูุจูู ูู ุซูุงุซุฉ ุญููู
406
00:44:36,690 --> 00:44:43,960
ูุจูู ูู ูุงุญุฏ ูุงูุชุงูู cosine ุงู X ูุงูุชุงูุช sin Xูุจูู
407
00:44:43,960 --> 00:44:50,280
ุงูู
ุดุชูุฉ Zero ุงูู
ุดุชูุฉ ุณุงูุจ Sine X ุงูู
ุดุชูุฉ Cos X
408
00:44:50,280 --> 00:44:58,140
ูู
ุงู ู
ุฑุฉ Zero ูุงูุต Cos X ูุงูุต Sine X ุจุฏู ุงููู
409
00:44:58,140 --> 00:45:05,170
ุจุงุณุชุฎุฏุงู
ุนูุงุตุฑ ุงูุนู
ูุฏ ุงูุฃูููุจูู ูุงุญุฏ ููู ูุดุท ุจุตูู
410
00:45:05,170 --> 00:45:11,630
ุนู
ูุฏู ูุจูู sin ุชุฑุจูุน ุงู X ุฒุงุฆุฏ cosine ุชุฑุจูุน ุงู X
411
00:45:11,630 --> 00:45:16,650
ุงููู ูู ูุฏุงุดุฑ ุงููุงุญุฏ ุจุฏู ุฃุฌูุจ ุงูุฑููุณ ููู ูุงู as a
412
00:45:16,650 --> 00:45:20,810
function of X ุจุฏู ุฃุดูู ุงูุนู
ูุฏ ูุฐุง ู ุฃุณุชุจุฏูู
413
00:45:20,810 --> 00:45:31,390
ุจุงูุนู
ูุฏ 001ูุงูุงุชููู ูุฏูู ุฒู ู
ุง ูู
cos x sin x-sin
414
00:45:31,390 --> 00:45:41,050
x cos x-cos x-sin x ููุณุงููุจูุฏููู ุจุฑุถู ุจุงุณุชุฎุฏุงู
415
00:45:41,050 --> 00:45:46,830
ุงูุนู
ูุฏ ุงูุฃูู ูุจูู zero ูุงูุต zero ุฒุงุฆุฏ ูุงุญุฏ ูู ุฃุดุท
416
00:45:46,830 --> 00:45:51,250
ุจุตูู ุนู
ูุฏู cosine ุชุฑุจูู ุฒุงุฆุฏ sine ุชุฑุจูู cosine
417
00:45:51,250 --> 00:45:57,430
ุชุฑุจูู ุงู X ุฒุงุฆุฏ sine ุชุฑุจูู ุงู X ููู ุจูุฏุงุด ุจูุงุญุฏ
418
00:45:57,910 --> 00:46:02,810
ูุจูู ุจูุงุก ุนููู ุจุฏู ุงุฌูุจ ุงูุฑููุณูู ุงุชููู as a
419
00:46:02,810 --> 00:46:05,910
function of x ูุจูู ุงูุนู
ูุฏู ุงููู ุงููู ูู ุจุฏู ุงุฑุฌุน
420
00:46:05,910 --> 00:46:09,970
ูู
ุง ูุงู ูุง ุจูุงุช ุงู ูุงุญุฏ zero zero ุงูุนู
ูุฏู ุงูุชุงูู
421
00:46:09,970 --> 00:46:13,550
ูู ุงููู ุจุฏู ุงุณุชุจุฏูู ุจ zero zero ูุงุญุฏ ูุงูุนู
ูุฏู
422
00:46:13,550 --> 00:46:20,110
ุงูุชุงูุช ูู
ุง ูุงู sine ุงู X cosine ุงู X ูุงูุต sine ุงู
423
00:46:20,110 --> 00:46:25,970
Xูุจูู ุจูุงุก ุนููู ูุฐุง ุงูููุงู
ูุณุงูู ุจุฏุง ููู ุจุงุณุชุฎุฏุงู
424
00:46:25,970 --> 00:46:31,590
ุนูุงุตุฑ ุงูุนู
ูุฏ ุงูุฃูู ูุจูู ูุดุท ุจุตูู ูุนู
ูุฏู zero ูุงูุต
425
00:46:31,590 --> 00:46:36,470
cosine ุงู X ูุจูู ูุงูุต cosine ุงู X ุฎูููุง ูุฌูุจ
426
00:46:36,470 --> 00:46:43,350
ุงูุฑููุณููู 3 as a function of X ูุณุงูู 1 0 0 ุงูุนู
ูุฏ
427
00:46:43,350 --> 00:46:50,590
ุงูุชุงูู ูู
ุง ูู cosine ุงู X ูุงูุต sine ุงู Xูููุง ูุงูุต
428
00:46:50,590 --> 00:46:58,270
cosine ุงู X ูููุง 001 ุจุงูุดูู ุงููู ุงููุนูุงู ุจุฏุง ุงููู
429
00:46:58,270 --> 00:47:02,590
ุจุงุณุชุฎุฏุงู
ุนูุงุตุฑ ุงูุนู
ูุฏ ุงูุฃูู ุจุฌูุดุท ุจุตู ู ุนู
ูุฏู ูุงูุต
430
00:47:02,590 --> 00:47:11,780
sin Xุฎููุตูุง ู
ููุ ุณุฃุญุตู ุนูู ุงูู C1 as a function of
431
00:47:11,780 --> 00:47:19,880
X ุงูุชูุงู
ู ู
ู ุฃููุ ุงูุชูุงู
ู ููู Ronskin 1 of X ูู
432
00:47:19,880 --> 00:47:24,260
ุงูู F of X ูุง ููุฌุฏ ูููุง ุชุบููุฑ ูู
ุง ูู ุนูู ุงูู
433
00:47:24,260 --> 00:47:30,180
Ronskin of X ููู ุจุงููุณุจุฉ ุฅูู DX ูุณูู ุชูุงู
ู Ronskin
434
00:47:30,180 --> 00:47:35,670
1 ุทูุนูุงู ุจูุฏุฑุด ุจูุงุญุฏูุจูู ูุฐุง ูุงุญุฏ ููู ุงู F of X
435
00:47:35,670 --> 00:47:41,410
ุงููู ูุจูู ุฏูุดุฉ ุจูุงุช ุณู ุงู X ุงุฒุงูู ุนูู ุณู ุงู X ุนูู
436
00:47:41,410 --> 00:47:47,270
ุงูุฑููุณููู of X ุงูุฃูู ุจุฑุถู ูุงุญุฏ ููู DX ูุจูู ุชูุงู
ู
437
00:47:47,270 --> 00:47:53,190
ุงูุณู ููู absolute value ูุณู ุงู X ุฒุงุฆุฏ ุชุงูู ุงู X
438
00:47:53,190 --> 00:47:59,710
ุจุฏูุง ูุฌูุจ C2 as a function of Xูุจูู ุชูุงู
ู ุฑูุณููู 2
439
00:47:59,710 --> 00:48:06,470
of x ูู f of x ุนูู ุฑูุณููู of x dx ูุณูู ุชูุงู
ู
440
00:48:06,470 --> 00:48:11,790
ุฑูุณููู 2 ูู ุจูุงูุต cos x
441
00:48:22,510 --> 00:48:28,490
ูุจูู ุชูุงู
ู ููุงูุต DX ูุจูู ุจูุงูุต X ู ูุง ุชูุชุจู
442
00:48:28,490 --> 00:48:33,650
Constants ูุฃู ูู ุตูุงุฉ ู ูุชุงุจ ูุนู
ููุง ููู ุชูุฑุงุฑ ูุจูู
443
00:48:33,650 --> 00:48:38,510
ุณูุจูู ู
ู ุงูุชูุฑุงุฑ ูุจูู ุจูุชุจูุง ููุท ุฒู ููู ุจุฏุฃ ูุงุฎุฏ
444
00:48:38,510 --> 00:48:39,590
C3
445
00:48:46,760 --> 00:48:54,240
ูุจูู ุจูุฏู C3A of X ูุจูู ูุณุงูู ุชูุงู
ู ุฑููุณููู 3 of X
446
00:48:54,240 --> 00:49:00,900
ูู F of X ุนูู ุฑููุณููู of X DX Y ูุณุงูู ุงูุฑููุณููู 3
447
00:49:00,900 --> 00:49:09,010
ูู ุณุงูุจ ุตูู Xูุงูุฏุงูุฉ ุณู ุงู X ูุงูุฑู
ุฒ ูุงู ูุงุญุฏ DX
448
00:49:09,010 --> 00:49:15,810
ูุจูู ูุณุงูู ุชูุงู
ู ุณุงูู sin X ุงูุณู ู
ููุจ ุงู cos X DX
449
00:49:15,810 --> 00:49:20,570
ุงุธู ุงูุจุณุทุฉ ูุงุถู ุงูู
ูุงู
ูุจูู ุงูุฌูุงุจ ููู absolute
450
00:49:20,570 --> 00:49:28,570
value ู cos X ูุจูู ุฌุจุช ุงูุณููุงุชู ุชูุงุชุฉ ูุจูู ุณุงุฑ YP
451
00:49:28,570 --> 00:49:33,720
ูุณุงูู ููู YP ูุง ุจูุงุชูููุจุฏู ุงุดูู ุงูู C1 ุงูู C1
452
00:49:33,720 --> 00:49:38,720
ุฌูุจูุงูุง ุงููู ูู ูุฏุงุด ุงููู ูู ุงู N absolute value
453
00:49:38,720 --> 00:49:47,480
ูุณู ุงู X ุฒุงุฆุฏ ุชุงูู ุงู X ุฒุงุฆุฏ C2 ููู C2 ููู ุฒุงุฆุฏ
454
00:49:47,480 --> 00:49:52,280
ุงููู ูู ูุงูุต X ูู ู
ููุ ูู cosine ุงู X
455
00:50:04,270 --> 00:50:12,930
ูุจูู y ูุณูู yc ูู
456
00:50:12,930 --> 00:50:23,580
ุชุญุช ูุจูู c ูุงุญุฏุฒุงุฆุฏ C2 Cos X ุฒุงุฆุฏ C3 Sin X ุฒุงุฆุฏ YP
457
00:50:23,580 --> 00:50:28,540
ูุงู ู ุจุฏู ูุฒูู ุฒู ู
ุง ูู ุจุณ ููู ุฎุงุทุฑ ุงุฑุชุจู ูุจูู ูุงู
458
00:50:28,540 --> 00:50:36,820
Sin X ูู Lin absolute value ู Cos X ูุงูุต X ูู Cos
459
00:50:36,820 --> 00:50:45,600
X ุฒุงุฆุฏ Lin absolute value ูุณู Xุฒุงุฆุฏ ุชุงู ุงู X ููุงู
460
00:50:45,600 --> 00:50:50,160
ุงููู ุจุงูุณุฑ ุนูููุง ูุจูู ูุฐุง ุญู ุงูุณุคุงู ุงููู ุนูุฏูุง
461
00:50:50,160 --> 00:50:54,780
ุชู
ุงู
ู ููุฐุง ูุนูู ุงูุดุบู ุจูุฐู ุงูุทุฑููุฉ ุทุจุนุง ูู ุฌูุจูุงู
462
00:50:54,780 --> 00:50:58,200
ุณุคุงู ูู ุงูุงู
ุชุญุงู ูู ูุฒูุฏ ุนู ุงูุฑุชุจุฉ ุงูุชุงูุชุฉ ุงู
463
00:50:58,200 --> 00:51:01,780
ุฏุฎููุง ูู ุงูุฑุชุจุฉ ุงูุฑุงุจุนุฉุจุฏู ู
ุญุฏุฏ ู
ู ุงูุฏุฑุฌุฉ ุงูุฑุงุจุนุฉ
464
00:51:01,780 --> 00:51:05,760
ุจูุงุฎุฏ ููุช ูุชูุฑ ู ุงูุช ุชุญู ููู ูุจูู ููุท ู
ู ุงูุฏุฑุฌุฉ
465
00:51:05,760 --> 00:51:11,260
ุงูุซุงูุซุฉ ุงู ุงูุฏุฑุฌุฉ ุงูุซุงููุฉ ุงู ุดุงุก ุงููู ูุงุฒููุง ูู
466
00:51:11,260 --> 00:51:15,600
ููุณ ุงู section ู ูู
ุง ููุชูู ุจุนุฏ ูู ุนูุฏู ุจุนุถ ุงูุฃู
ุซูุฉ
467
00:51:15,600 --> 00:51:20,060
ุนูู ููุณ ุงูู
ูุถูุน ุจุงูุงุถุงูุฉ ุงูู ุงุฎุฑ ุทุฑููุฉ ุงููู ูู
468
00:51:20,060 --> 00:51:24,340
ุทุฑููุฉ reduction of order ูุงุฎุชุฒุงู ุงูุฑุชุจุฉ ููู
ุญุงุถุฑุฉ
469
00:51:24,340 --> 00:51:26,760
ุงูููู
ุจุนุฏ ุงูุธูุฑ ุงู ุดุงุก ุงููู ู ุชุนุงูู
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