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Yahoo!奇摩知識+ - 分類問答 - 科學常識 - 已解決
Yahoo!奇摩知識+ - 分類問答 - 科學常識 - 已解決 
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關於一些工程數學的題目
Jul 11th 2014, 21:33

1. y ' + 2y = e^3x
2. y ' + 2xy = x
3. y' + 2xy = e^-3x(2x-3)
4. y ' + tan(x)y = sin (2x)
5. xy' - 4y = x^6e^x
6. y ' - y = 4e^x , y(0)=4
7. y ' + 3x^2y = e^-x^3 , y(0)=-2
8. y ' + y/x = e^x , y(1)=2 , x>0
9. y ' + ye^x/1+e^x = -2x/1+e^x , y(0) = 0

請大大幫忙解一下
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