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Math Help - Finding volume between curves

  1. #1
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    Finding volume between curves

    How could I find the volume between the curves y= e^3 and y=x , rotated about the x-axis? Should I be using the disk/washer method or the cylindrical method?
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  2. #2
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    As stated, your problem doesn't make any sense. e^3 is a constant. So you have the straight line y = e^3, and the straight line y = x. Those are intersecting straight lines - they don't enclose any area. Could you please re-state the problem precisely?
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  3. #3
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    oops, i meant e^(3x^2) instead of e^3
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  4. #4
    A Plied Mathematician
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    Do you have an interval for this solid of revolution? Those two curves don't intersect. However, if you have a y or x interval, then we can proceed.
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