$\"\"$

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

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(a)

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Find the domain of $\"\"$ .

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

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$\"\"$ .

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Substitue $\"\"$ in the above function

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$\"\"$

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Substitue $\"\"$ in $\"\"$ .

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$\"\"$ .

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Since $\"\"$ .

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Therefore, $\"\"$ .

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The domain of the function is all real numberes.

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

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$\"\"$

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(b)

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Find the domain of $\"\"$ .

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

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$\"\"$

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Substitute $\"\"$ in the above function

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$\"\"$

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Substitue $\"\"$ in $\"\"$

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$\"\"$

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$\"\"$

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

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$\"\"$

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(c)

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Find the vlue of $\"\"$ .

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From part (a) $\"\"$ .

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Therefore, $\"\"$ .

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The value of $\"\"$ is $\"\"$ .

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$\"\"$

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(d)

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Find the domain of $\"\"$ .

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

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$\"\"$

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Substitute $\"\"$ in the above equation.

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$\"\"$

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Substitute $\"\"$ in the function $\"\"$ .

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$\"\"$ .

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

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$\"\"$

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(e)

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Find $\"\"$ .

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From the solution $\"\"$ , $\"\"$ .

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Substitute $\"\"$ in the above function

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$\"\"$

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Since $\"\"$ .

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$\"\"$

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The value of $\"\"$ is $\"\"$ .

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$\"\"$

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(a)The domain of $\"\"$ is $\"\"$ .

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(b)The domain of the function $\"\"$ is $\"\"$ .

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(c) The value of $\"\"$ is $\"\"$ .

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(d) The domain of the function is $\"\"$ .

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(e) The value of $\"\"$ is $\"\"$ .