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If `f(x)` is differentiable and `int_0^(t^2) x f(x) dx=2/5t^5,` then `f(4/(25))` equals (a)`2/5` (b) `-5/2` (c)`1` (d) `5/2`

A

`2//5`

B

`-5//2`

C

1

D

`5//2`

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The correct Answer is:
A
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