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If sec ^(-1) x ="cosec" ^(-1) y . S...

If ` sec ^(-1) x ="cosec" ^(-1) y ` . State which of the following is the value of ` ( cos ^(-1) ""(1)/(x)+cos ^(-1) ""(1)/(y ))`?

A

`pi`

B

`(2pi)/(3)`

C

`(5pi)/(6)`

D

`(pi)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
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