(sin^-1x)^2-(cos^-1x)^2=a for o ltx lt1 ...

`(sin^-1x)^2-(cos^-1x)^2=a` for `o ltx lt1` find `2x^2-1`

A

`sin((4a)/pi)`

B

`sin((2a)/pi)`

C

`cos((4a)/pi)`

D

`cos((2a)/pi)`

Verified by Experts

The correct Answer is:

A

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