ay t cD inv - Suranaree University of Technology
Transcript of ay t cD inv - Suranaree University of Technology
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1( ) xy x e=-
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Yz =xet⇐
เมือทราบว่าผลเฉลยหนึงของสมการคือ 1( )y x x=O
=
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y = x f x- 3 dx
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x
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2 '' 4 ' 6 0, 0x y xy y x + = เมือทราบว่าผลเฉลยหนึงของสมการคือ 2
1( )y x x=O€7-
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a = XZ b =-4 X
Y,= x' I ¥, e-
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4 f IdxY,
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= x' f Ia e dx
a lnx=×' f I e d xx 4
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f Ia - e dx
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= X . x = X
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22 '' 3 ' 0, 0x y xy y x+ =
เมือทราบว่าผลเฉลยหนึงของสมการคือ 11( )y xx
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O O
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A = 2×2,b = 3 x
Ye = ⇐ , 1¥,et dx
dx
Ye = ⇐ , 1¥,et dx
dx
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= I 1 x? e- I
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x
x
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2 '' 5 ' 9 0, 0x y xy y x + =
เมือทราบว่าผลเฉลยหนึงของสมการคือ 31( )y x x=
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Gums bow ax't bat c=o
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y : er×[ qcoscsxltqsincs xD
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y = C, Y,t Ce Ya
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Duero bare violates Romo loading
แบบฝึกหัด
จงหาผลเฉลยของสมการ หรือ ปัญหาค่าตังต้นต่อไปนี
'' 2 ' 4 0, (0) 2, '(0) 6y y y y y+ + = = =2 2'' ' 0, ( ) , '( )y ey e y y e e y e e+ + = = =
2 1 1'' 0, ( ) , '( ) 12 2
y y y y + = = =
22 '' 3 ' 0, 0x y xy y x+ =
เมือทราบว่าผลเฉลยหนึงของสมการคือ 11( )y xx
=