Find the domain of the real function f(x...

Find the domain of the real function `f(x)=(1)/(sqrt([x]^(2)-[x]-2)`.

A

`R-[-1, 3)`

B

`(-oo, -3) nn[3, oo)`

C

`[2, oo)`

D

`(-oo, 3]`

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The correct Answer is:

A

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