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Find the volume of the solid of revolution formed by revolving the region bounded by the x-axis, the y -axis, and the curve y=cosx from

Find the volume of the solid of revolution formed by revolving the region bounded by the x-axis, the $y$ -axis, and the curve $y = \cos x$ from $x = 0$ to $x = \frac{π}{2}$ about the $y$ -axis.

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