Integrate: cos 2x ? sin square x cos square x dx
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\L∫sin2(x)cos2(x)dx=14∫[(1−cos(2x))(1+cos(2x))]dx=14∫(1−cos2(2x))dx=14∫sin2(2x)dx=18∫(1−cos(4x))dx=18x−132sin(4x)+C
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