$\"\"$

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

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The function is $\"\"$ .

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

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$\"\"$

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Quotient rule of derivatives $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ .

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$\"\"$

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The function is $\"\"$ .

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

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$\"\"$

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$\"\"$

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$\"\"$

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Therefore, $\"\"$

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$\"\"$

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Relation between $\"\"$ and $\"\"$ .

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If $\"\"$ then $\"\"$ , where $\"\"$ is a constant.

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .

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$\"\"$ .

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$\"\"$

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$\"\"$ .