$\"\"$

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The function is $\"\"$ .

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Differentiate with respect to $\"\"$ .

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$\"\"$

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

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$\"\"$

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Apply formulas : $\"\"$ .

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$\"\"$ .

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$\"\"$

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$\"\"$ .

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$\"\"$

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