$\"\"$

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Step 1:

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The functions are

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$\"\"$ .

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(a)

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Find $\"\"$ .

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

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$\"\"$

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Again substitute $\"\"$ in the $\"\"$ .

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$\"\"$

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$\"\"$

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(b)

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Find $\"\"$ .

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$\"\"$

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$\"\"$

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(c)

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Find $\"\"$ .

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$\"\"$

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$\"\"$

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Solution:

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$\"\"$