$\"\"$

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

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Apply derivative to the functions $\"\"$ and $\"\"$ with respect to $\"\"$ .

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$\"\"$

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$\"\"$

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Differentiate $\"\"$ with respect to $\"\"$ .

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$\"\"$

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Differentiate $\"\"$ with respect to $\"\"$ .

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$\"\"$

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Differentiate $\"\"$ with respect to $\"\"$ .

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$\"\"$

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$\"\"$

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Find $\"\"$ .

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Use chain rule : $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .