The domain of f(x)=Cot^(-1)((x)/(sqrt(x^...

The domain of `f(x)=Cot^(-1)((x)/(sqrt(x^(2)-[x^(2)])))` is

A

R

B

`R-{0}`

C

`R- { pm sqrt(n), n in Z " and " n ge 0}`

D

`R^(+)`

Verified by Experts

The correct Answer is:

C

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