関連ワード:  integral of 1 by sin x cos x    integration of 1 by sin x cos x dx    integral of 1 by sin x cos cube x    integration of 1 by sin x cos cube x dx    integral of 1 sin x cos x 2    integration of 1 by sin x cos square x    integration of 1 sin x cos x 2 dx    integration of 1 sin x cos x from 0 to pi 4    integration of 1 sin x cos x 3    integration of 1 by 3 2 sin x cos x