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# 急:解微分方程(1)

註:以下T=拍=180度

1. y'+(2/t)y=(cos t)/t^2 , y(T)=0 ,t>0

2. ty'+2y=sin t , y(T/2)=1, t>0

3.Show that all soultions of 2y'+ty=2 approach a limit as t→無限大, and find the limiting value.

謝謝大大幫我解題!!!

Update:

忘了說:

以上 find the solution of the given initial value problem

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