Step 1:

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The function is $\"\"$

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Simplify the function.

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$\"\"$

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$\"\"$

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Cancel the common terms.

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$\"\"$

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

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$\"\"$

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Sum and difference rule of derivatives : $\"\"$ .

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$\"\"$

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$\"\"$

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Solution :

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$\"\"$