$\"\"$

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The curves are $\"\"$ , $\"\"$ , $\"\"$ and $\"\"$ and about $\"\"$ -axis.

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Method of disk:

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The volume of the solid $\"\"$ obtained by rotating the region about $\"\"$ axis is $\"\"$ , where $\"\"$ is the cross-sectional area of the solid $\"\"$ .

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$\"\"$ .

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Here Radius $\"\"$ .

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Integral limits are $\"\"$ and $\"\"$ .

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$\"\"$

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$\"\"$

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Volume of the solid is $\"\"$ .

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$\"\"$

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Volume of the solid is $\"\"$ .