The domain of $y=cos^{-1}(x^2-4)$ is : - CUETMOCK

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Target Exam

CUET

Subject

-- Mathematics - Section B1

Chapter

Inverse Trigonometric Functions

Question:

The domain of $y=cos^{-1}(x^2-4)$ is :

Options:

$[3, 5]$

$[0, \pi]$

$[-\sqrt{5}, -\sqrt{3}]∩[-\sqrt{5}, \sqrt{3}]$

$[-\sqrt{5}, -\sqrt{3}]∪[-\sqrt{3}, \sqrt{5}]$

Correct Answer:

$[-\sqrt{5}, -\sqrt{3}]∪[-\sqrt{3}, \sqrt{5}]$

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