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Let f(x)= int(1)^(x) sqrt(2-t^(2)) dt. T...

Let `f(x)= int_(1)^(x) sqrt(2-t^(2)) dt`. Then the real roots of the equation `x^(2)- f'(x)= 0` are

A

`+-1`

B

`+-1//sqrt2`

C

`+-1//2`

D

0 and 1

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The correct Answer is:
A
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