$\"\"$

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The integral is $\"\"$ .

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Consider $\"\"$ and $\"\"$ .

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

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$\"\"$ .

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$\"\"$

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Integrate on each side.

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$\"\"$

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$\"\"$

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Integration by parts : $\"\"$

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Substitute $\"\"$ and $\"\"$ in the integral.

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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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$\"\"$ .