1.

If cosec^(-1)(cosecx) and cosec(cosec^(-1)x) are equal funtions, then the maximum range of value of x is

Answer»

`[-pi/2, -1] CUP [1, pi/2]`
`[-pi/2, 0) cup[0, pi/2]`
`(INFTY, -1] cup [1, infty)`
`[-1, 0) cup [0, 1)`

ANSWER :A


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