関連ワード:  integration of dx 3 sin 2 x 4 cos 2 x    integration dx sin 2 x 4 cos 2 x    integration of dx 4 sin 2 x 5 cos 2 x    integration of dx 4 sin 2 x 9 cos 2 x    integration of 1 4 sin 2 x 5 cos 2 x dx    integration of sin x 4 cos 2 x 1 dx    integration of 1 4 cos 2 x 9 sin 2 x dx    integration of 4 sin x cos x 2 cos 3x 2 dx    integration of 3 cos x 2 sin x 5 sin 2 x 4 cos x dx    integration of 4 cos x 2 cos x sin 21x 2 dx