The domain of y=cos^(-1)(x^(2)-4) is...

The domain of `y=cos^(-1)(x^(2)-4)` is

A

[3, 5]

B

`[0, pi]`

C

`[-sqrt(5), -sqrt(3)] cap [-sqrt(5), sqrt(3)]`

D

`[-sqrt(5), -sqrt(3)] cup [sqrt(3), sqrt(5)]`

Text Solution

Verified by Experts

The correct Answer is:

D

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