Step 1: \ \

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The expressions are $\"\"$ . \ \

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Find $\"\"$ : \ \

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$\"\"$

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Substitute $\"\"$ in above expression. \ \

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$\"\"$

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Step 2:

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

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$\"\"$ \ \

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

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$\"\"$

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Step 3:

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

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$\"\"$

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

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$\"\"$

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$\"\"$

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Solution: \ \

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$\"\"$

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