$\"\"$

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The function is $\"\"$ .

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Apply derivative on each side with respect to $\"\"$ .

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$\"\"$

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Rewrite the expression.

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$\"\"$

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Use product rule : $\"\"$ .

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$\"\"$

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$\"\"$

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Simplify the expression.

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$\"\"$

\

$\"\"$

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$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .