1.

If Sin^(-1)(cos^(-1)x) lt 1 and cos^(-1)(cos^(-1)x) lt 1" then "x in

Answer»

`(SIN1, Sin(sin1))`
`(cos(COS1), cos(sin1))`
`(cos(sin1), cos(cos1))`
`PHI` (empty set)

ANSWER :C


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