$\"\"$

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Evalute the integral $\"\"$ .

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Rewrite the integral.

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$\"\"$

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$\"\"$

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Assume $\"\"$ .

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

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$\"\"$

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$\"\"$

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Substitute $\"\"$ and $\"\"$ in equation $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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Power rule of integration: $\"\"$ .

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$\"\"$

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$\"\"$

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Substitute $\"\"$ in above equation.

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$\"\"$ .

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$\"\"$

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$\"\"$ .