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If y=2/sqrt(a^2-b^2)tan^-1[sqrt((a-b)/(a...

If `y=2/sqrt(a^2-b^2)tan^-1[sqrt((a-b)/(a+b))tan(x/2)]` then `(d_2y)/(dx^2)|(=),(x=pi/2):|`

A

`b/(2a^2)`

B

`b/(a^2)`

C

`(2b)/a`

D

`(b^2)/(2a)`

Text Solution

Verified by Experts

The correct Answer is:
B
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