$\"\"$

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The integral is $\"\"$ .

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Let $\"\"$ , then $\"\"$ .

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

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$\"\"$

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Change of integral limits:

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Lower limit: If $\"\"$ , then $\"\"$ .

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Upper limit: If $\"\"$ , 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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Since the degree of numerator is greater than the degree of denominator, perform the long division.

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$\"\"$

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Therefore, $\"\"$ .

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$\"\"$

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$\"\"$ .

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$\"\"$

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$\"\"$ .