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The function is $\"\"$ .

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The domain of the function is $\"\"$ .

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Find the inverse function.

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Change $\"\"$ to $\"\"$ .

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$\"\"$ .

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Interchange the variables $\"image\"$ and $\"image\"$ .

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$\"\"$ .

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Divide each side by $\"\"$ .

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$\"\"$

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Apply inverse trigonometric property: $\"\"$ .

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$\"\"$

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Change $\"\"$ to $\"\"$ .

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The inverse function is $\"\"$ .

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Find the range of function.

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$\"\"$ .

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$\"\"$

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Range of cosine function: $\"\"$

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Therefore, $\"\"$ .

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$\"\"$

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The range of $\"\"$ is $\"\"$ .

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The domain of $\"\"$ is range of $\"\"$ .

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The domain of $\"\"$ is $\"\"$ . The Range of of $\"\"$ is domain of $\"\"$ .

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The range of $\"\"$ is $\"\"$ or $\"\"$ .

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The inverse function is $\"\"$ .

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The range of $\"\"$ is $\"\"$ .

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The domain of $\"\"$ is $\"\"$ .

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The range of $\"\"$ is $\"\"$ .