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If sec ^(-1) x=cosec^(-1) y then cos ^(-...

If `sec ^(-1) x=cosec^(-1) y` then `cos ^(-1) (1)/(x)+cos ^(-1) (1)/(y)=`

A

`pi`

B

`(pi)/(4)`

C

`-(pi)/(2)`

D

`(pi)/(2)`

Text Solution

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The correct Answer is:
D
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HIMALAYA PUBLICATION-INVERSE TRIGONOMETRIC FUNCTIONS-QUESTION BANK
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