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agentx5

  • 3 years ago

Is this correct? Q: Use the method of cylindrical shells to find the volume of the solid obtained by rotating the region bounded by the given curves about the x-axis. xy = 7, x = 0, y = 7, y = 9 A: \(\huge\int\limits_7^9 (2 \pi)(y)(\frac{y}{7}) dy = \frac{772 \pi}{21}\)

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  1. agentx5
    • 3 years ago
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    |dw:1341354997885:dw|

  2. TuringTest
    • 3 years ago
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    xy=7 -> x=7/y

  3. agentx5
    • 3 years ago
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    Omg... and 28\(\pi\) is the answer, correct. Ty much @TuringTest I can't believe I made such an easy error >_<

  4. TuringTest
    • 3 years ago
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    stupid algebra, I still don't like it much either :/

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