find f(x) given that  f'''(x)=cos x, f(0)=8, f'(0)=4 and f''(0)=9.

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It is given that f'''(x) = cos x, f(0)=8, f'(0)=4 and f''(0)=9. We have to find f(x).

f'''(x) = cos x

Integrating f'''(x) gives f''(x) = sin x + C1


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