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The functions are $\"\"$ and $\"\"$ .

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To find $\"\"$ , we need to find the domain of $\"\"$ , which can be done for $\"\"$ .

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Then evaluate $\"\"$ for each of these $\"\"$ values, which is only true when $\"\"$ .

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This means that we must exclude from the domain those values for which $\"\"$ .

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Solve the equation $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .

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Therefore, the domain of $\"\"$ is $\"\"$ .

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Find $\"\"$ .

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$\"\"$

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Replace $\"\"$ with $\"\"$ .

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$\"\"$

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Substitute $\"\"$ for $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .

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Notice that $\"\"$ is only defined for $\"\"$ , which is the same restriction determined the by considering the domains of $\"\"$ and $\"\"$ .

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Therefore, $\"\"$ for $\"\"$ and $\"\"$ .

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To find $\"\"$ , we need to find the domain of $\"\"$ , which can be done for $\"\"$ .

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Then evaluate $\"\"$ for each of these $\"\"$ values, which can only be done for all $\"\"$ .

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This means that we must exclude from the domain those values for which $\"\"$ .

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Solve the equation $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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Combining this restrictions.

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Therefore, the domain of $\"\"$ is $\"\"$ .

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Find $\"\"$

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Replace $\"\"$ with $\"\"$ .

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$\"\"$

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Substitute $\"\"$ for $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ .

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Notice that $\"\"$ is only defined for $\"\"$ . which is the same restriction determined the by considering the domains of $\"\"$ and $\"\"$ .

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Therefore, $\"\"$ for $\"\"$ and $\"\"$ .

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$\"\"$ for $\"\"$ and $\"\"$ .

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$\"\"$ for $\"\"$ and $\"\"$ .