\"\"

\

The function is \"\" and \"\".

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Find \"\".

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The function is \"\".

\

Differentiate on each side with respect to \"\".

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\"\".

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Product rule of derivatives : \"\".

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\"\"

\

\"\".

\

\"\"

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Find \"\" at \"\".

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\"\".

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Substitute \"\" in \"\".

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\"\"

\

\"\".

\

\"\"

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The derivative of the function is \"\".

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The derivative of the function at \"\" is \"\".