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cosec^(-1)(cos x) is real if...

`cosec^(-1)(cos x)` is real if

A

`x in [-1,1]`

B

`x in R`

C

x is an odd multiple of `pi//2`

D

x is an multiple of `pi`

Text Solution

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The correct Answer is:
D
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MOTION-INVERSE TRIGONOMETRIC FUNCTIONS-Section A: Domain, Range
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