$\"\"$

The function is $\"\"$ .

Take logarithm of each side.

$\"\"$ .

Quotient property of logarithms : $\"\"$ .

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Product property of logarithms : $\"\"$ .

$\"\"$ .

Power property of logarithms : $\"\"$ .

$\"\"$ .

Property of lograithm : $\"\"$ .

$\"\"$ .

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Apply logarithmic differentiation on each side with respect $\"\"$ .

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Substitute $\"\"$ in the expression.

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