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If f(x)= int0^x\ t\ (sinx-sint)\ dt then...

If `f(x)= int_0^x\ t\ (sinx-sint)\ dt` then :

A

`f '''(x) f '(x) = cos x - 2x sin x`

B

`f '''(x) + f'' (x) -f' (x) = cos x`

C

` f '''(x) -f '' (x) = cos x -2x sin x`

D

`f '''(x) + f'' (x ) = sin x`

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The correct Answer is:
A
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DISHA PUBLICATION-INTEGRALS -EXERCISE-2 CONCEPT APPLICATOR
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