$\"\"$

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Write the above thing like this

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$\"\"$ .

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Integrate this by parts

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Let $\"\"$ .

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It is in the form $\"\"$ .

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Apply the formula

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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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$\"\"$

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Use the formula $\"\"$

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If $\"\"$ .

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$\"\"$

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$\"\"$

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If $\"\"$ .

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$\"\"$

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$\"\"$ .

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The solution of $\"\"$ is

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$\"\"$ ( If $\"\"$ )

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$\"\"$ (If $\"\"$ )