$\"\"$

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The function is $\"\"$ .

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Substitute the value of $\"\"$ in above function.

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$\"\"$

\

$\"\"$

\

$\"\"$

\

The expression is $\"\"$ .

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Substitute the value of $\"\"$ in above expression.

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$\"\"$

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$\"\"$

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$\"\"$

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