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trig question

  1. power09

    Finding Intersection of two trig functions

    The functions are Cos(x) & Sin(2x) I'm trying to find the area between these two functions at [7pi/2,9pi/2] All the integration I get but since these lines crossover in this interval I need to find that exact point so I can split up the integrals I can easily work out that it is between 4pi &...

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