関連ワード:  integration of sin x 2    integration of sin x 2 dx    integration of sin x 2 1    integration of sin x 2y    integration of sin x 2x    integration of sin x 2 3    integral of sin x 2 from 0 to infinity    integral of sin x 2 from 0 to 1    int of sin x 2    integral of sin x 2 from 0 to pi