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If the following functions are defined from `[-1,1]to[-1,1],` select those which are not objective. `sin(s in^(-1)x)` (b) `2/pisin^(-1)(sinx)` `(sgn(x))1N(e^x)` (d) `x^3(sgn(x))`

A

`sin(sin^(-1)x)`

B

`2/(pi)sin^(-1)(sin x)`

C

`(sgn x)lne^(x)`

D

`x^(3)sgn x`

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The correct Answer is:
B, C, D
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