関連ワード:  integral of sin x 1 cos 2x    integral of sin x 1 cos 2x dx    integration of sin x root 1 cos 2x dx    integral of sin 2 x 1 cos 2x    integral of sin 2 x 1 cos 2x dx    integration of x sinx 1 cos 2x    integration of sin x under root 1 cos 2x    integration of sin x 1 cos 2 x limit 0 to pi 2    integration of sin x 1 cos 2 x from 0 to pi 2    integration of 4x sin x 1 cos 2 x