The local maximum value of f(x)=(sin^(2)...

The local maximum value of `f(x)=(sin^(2)x)/(sin^(2)x-sin^(2)a) (0 lt a lt pi//2)` is :

A

0

B

`sec^(2) a`

C

`cosec^(2) a`

D

None of these

Verified by Experts

The correct Answer is:

B

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