$\"\"$

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The integral is $\"\"$ .

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Rewrite the integral as $\"\"$ .

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

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$\"\"$ .

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Substitute corresponding values in $\"\"$ .

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$\"\"$

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

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$\"\"$

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$\"\"$

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Subustiute back $\"\"$ .

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$\"\"$

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$\"\"$ .

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$\"\"$

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$\"\"$ .