関連ワード:  integration of sin 4x x 2    integration of sin 4x cos 2 x    integration of sin 4x * e tan 2 x    integration of sin 4 x 2    integration of sin 4x cos 2 x dx    integration of 1 sin 4x cos 2 x    integration of sin 2x cos 4x sin 2 x 2    integration of sin 4x * e tan 2 x dx    integration of sin 2x sin 4x 4 sin 2 x 2    integration of 1 sin 4x cos 2 x dx