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xy'-y=x^2(xcosx+sinx) and if f(pi)=pi th...

`xy'-y=x^2(xcosx+sinx)` and if `f(pi)=pi` then find `f''(pi/2)+f(pi/2)=`

A

`2+pi/2+pi^2/4`

B

`1+pi/2`

C

`1+pi/2+pi^2/4`

D

`2+pi/2`

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