$\"\"$

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The integral is $\"\"$ .

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$\"\"$ .

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Squaring on both sides.

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$\"\"$

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Differentiate with respect to $\"\"$ .

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$\"\"$ .

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When $\"\"$ , then $\"\"$ .

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When $\"\"$ , then $\"\"$ .

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Substitute corresponding values in $\"\"$ .

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$\"\"$

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$\"\"$

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Consider $\"\"$ .

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Substiute $\"\"$ , then $\"\"$ .

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When $\"\"$ , then $\"\"$ .

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When $\"\"$ , then $\"\"$ .

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$\"\"$ .

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$\"\"$

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$\"\"$

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The value of $\"\"$ is $\"\"$ .