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if f'(x)=sqrt(2x^2-1) and y=f(x^2) then ...

if `f'(x)=sqrt(2x^2-1)` and `y=f(x^2)` then `(dy)/(dx)` at `x=1` is:

A

2

B

1

C

`-2`

D

`-1`

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The correct Answer is:
A
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AAKASH INSTITUTE-CONTINUITY AND DIFFERENTIABILITY-Assignment ( section -A)
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