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The domain of f(x)=cos^(-1)(x^(2)-3) is...

The domain of `f(x)=cos^(-1)(x^(2)-3)` is

A

1)`[-1,1]`

B

2)`[-2,2]`

C

3)`[-sqrt(2),sqrt(2)]`

D

4)`[-2-sqrt(2)]uu[sqrt(2),2]`

Text Solution

Verified by Experts

The correct Answer is:
D
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