$\"\"$

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The function is $\"\"$

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Apply derivative with respect to $\"\"$ .

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$\"\"$

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Rewrite the above equation

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$\"\"$

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

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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(a)

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The equation is $\"\"$

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Substitute $\"\"$ in the above equation

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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(b)

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$\"\"$

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Substitute $\"\"$ in the above equation

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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(c)

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$\"\"$

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Substitute $\"\"$ in the above equation

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ \ \

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(a) $\"\"$ .

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(b) $\"\"$ .

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(c) $\"\"$ .