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  1. M

    Desperate trig integration help needed!

    Ok, so this might be a bit last minute, seeing as my test is tomorrow, but can anyone tell me how to do the integral of cos^2(2x)?? i think it probably has something to do with the manipulation of that formula: 1/2x + 1/4sin2x + C but i just can't get it out. Can anyone out there help?
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