$\"\"$

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The integral is $\"\"$ .

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The integral can be written as $\"\"$ .

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$\"\"$

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$\"\"$ .

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$\"\"$

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Consider $\"\"$ .

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Let $\"\"$ $\"\"$ .

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$\"\"$ .

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Substituting corresponding values in the integral.

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$\"\"$

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If $\"\"$ , then $\"\"$ .

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$\"\"$

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Consider $\"\"$ .

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Find the integral using trigonometric substitution.

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Let $\"\"$ .

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$\"\"$

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Differentiate on each side.

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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Solve :

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$\"\"$

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Apply substitution :

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$\"\"$

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$\"\"$ is constant.

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$\"\"$

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$\"\"$ .

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$\"\"$

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$\"\"$ .