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Integral Question: Areas between curves?

  1. Jan 30, 2014 #1
    1. The problem statement, all variables and given/known data

    Sketch the region in the first quadrant enclosed by the given curves. Decide whether to integrate with respect to x or y. Then find the area of the region.
    y=4cosx, y=6sin2x, x=0.

    2. Relevant equations



    3. The attempt at a solution

    I got the intersections, which are x=pi/2, arcsin1/3 as well as x=0 but I seem to keep getting 10/3, which is not the right answer.
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Jan 30, 2014 #2

    Dick

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    Science Advisor
    Homework Helper

    You should really show more of your work if you expect people to understand what region you are integrating over, but I think you are integrating over the wrong region. x=0 is the y-axis, and I don't see how the intersection at x=pi/2 is relevant.
     
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