If ∫ (f''(X)+f'(X)+f(X))dx = X^{3} +2aX^{2}+6 and f''(1)=2f'(1)=3f(1)=6 find the value of a
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Lets see what will you get when you differentiate both sides of your equation.
than you for your reply, but sorry i didnt get what you mean
You have equation. Differentiate both sides with respect to x.
thank you so much, i got it and could solve it,