यदि int(0)^(a)(dx)/(1+4x^(2))=(pi)/(8) ...

यदि `int_(0)^(a)(dx)/(1+4x^(2))=(pi)/(8)` है तो a बराबर है :

A

`1/3`

B

`1/4`

C

`1/2`

D

1

Verified by Experts

The correct Answer is:

C

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