関連ワード:  integration of sin square 2x    integration of sin square 2x + 5    integration of sin square 2x dx    integration of sin 2 2x 5    integration of sin 2 2x    integration of sin 2 2x 5 dx    integration of sin 2 2x dx    integration of sin 2 2x cos2x    integration of sin 2 2x 1    integration of sin^2 2xdx