関連ワード:  integration of sin 4x cos 4x dx    integration of sin 4x cos 4x dx is equal to    integration of 1 sin 4x cos 4x dx    integration of sin2x sin 4x cos 4x dx    integration of 32 sin 4x cos 4x dx    int sin 4x cos 4x dx    evaluate integral sin 4x cos 4x dx    integration 0 to pi (sin^4x + cos^4x) dx    integration of sin 3x cos 4x dx    integration of sin 5x cos 4x dx