$\"\"$

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The integral is $\"\"$ .

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$\"\"$

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Multiply the numerator and denominator by $\"\"$ .

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$\"\"$

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$\"\"$

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Let $\"\"$ .

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Differentiate on each side .

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$\"\"$

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$\"\"$

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$\"\"$

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Replace $\"\"$ in the above expression.

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$\"\"$

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$\"\"$ .

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$\"\"$

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$\"\"$ .