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If cosec^(-1) ( cosec x) " and " cosec (...

If `cosec^(-1) ( cosec x) " and " cosec ( cosec^(-1) x) ` are equal functions, then the maximum range of value of x is

A

`[- pi/2 , -1] cup[1, pi/2]`

B

`[- pi/2 , 0 ) cup ( 0, pi/2]`

C

`( - infty, -1] cup [1, infty)`

D

`[-1, 0) cup (0,1]`

Text Solution

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The correct Answer is:
A
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