exercise:90a6bde609

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• Find the volume of the solid of revolution obtained by rotating about the [math]y[/math]-axis the region bounded by the [math]x[/math]-axis, and the graphs of [math]y=x^2-1[/math] and [math]y=3[/math].
• Using (a), find the volume generated by rotating the region in Problem (a) about the [math]y[/math]-axis.