Find the area of the surface formed by revolving the curve \(r = 5 \sin\theta\) from \(\theta = 0\) to \(\theta = \frac{\pi}{2}\) about the \(x\)-axis.

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Find the area of the surface formed by revolving the curve \(r = 5 \sin\theta\) from \(\theta = 0\) to \(\theta = \frac{\pi}{2}\) about the \(y\)-axis.

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Find the area of the surface formed by revolving the curve \(r = 3 \cos(\theta)\) from \(\theta = 0\) to \(\theta = \frac{\pi}{2}\) about the \(x\)-axis.

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Find the area of the surface formed by revolving the curve \(r = 5 \cos{\theta}\) from \(\theta = 0\) to \(\theta = \frac{\pi}{2}\) about the \(y\)-axis.

Excel in math and science

Master concepts by solving fun, challenging problems.

It’s hard to learn from lectures and videos

Learn more effectively through short, conceptual quizzes.

Our wiki is made for math and science

Master advanced concepts through explanations,
examples, and problems from the community.

Used and loved by 4 million people

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including olympiad champions, researchers, and professionals.

Your answer seems reasonable.
Find out if you're right!