$\"\"$

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The function is $\"\"$ .

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Solve the function in terms of $\"\"$ .

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$\"\"$

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Integrate between $\"\"$ to $\"\"$ .

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By usig shell method $\"\"$ .

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Apply logarithm on both sides.

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$\"\"$

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Integrate between $\"\"$ to $\"\"$ .

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By using disk method $\"\"$ .

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This function is easy to solve Disk method.

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$\"\"$

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Disk method.