関連ワード:  integration of sin 2 2x 5    integration of sin 2 2x    integration of sin 2 2x cos2x    integration of sin 2 2x 1    integration of sin^2 2xdx    integration of sin 2 2x 3    integral of sin 2 2x from 0 to pi    integration of sin 2x 2 cos x    antiderivative of sin 2 2x    integration of sin squared 2x