$\"\"$

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The function $\"\"$ is an one to one function.

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(a)

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$\"\"$ .

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Here domain of $\"\"$ is $\"\"$ and range of $\"\"$ is $\"\"$ .

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Find $\"\"$ .

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$\"\"$ means range of $\"\"$ corresponds to the element $\"\"$ .

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From the inverse function definition, range of $\"\"$ is domain of $\"\"$ .

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Therefore, $\"\"$ .

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$\"\"$

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(b)

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$\"\"$ .

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Here domain of $\"\"$ is $\"\"$ and range of $\"\"$ is $\"\"$ .

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Find $\"\"$ .

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$\"\"$ means range of $\"\"$ corresponds to the element $\"\"$ .

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From the inverse function definition, domain of $\"\"$ is range of $\"\"$ .

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Therefore, $\"\"$ .

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$\"\"$

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(a) $\"\"$ .

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(b) $\"\"$ .