यदि sec^(-1)x=cosec^(-1)y है तो [cos^(-1...

यदि `sec^(-1)x=cosec^(-1)y` है तो `[cos^(-1)""(1)/(x)+cos^(-1)""(1)/(y)]` बराबर है :

A

`pi`

B

`(pi)/(4)`

C

`(-pi)/(2)`

D

`(pi)/(2)`

Verified by Experts

The correct Answer is:

D

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