関連ワード:  integrate sin 4 x dx from 0 to pi 2    integrate sin 4 x dx from 0 to pi    integrate sin 4 x cos 4 x dx from 0 to pi 2 k    integrate sin 4 x * cos 3 x dx from 0 to pi 2    integrate sin 4 x cos 4 x dx from 0 to pi    integrate sin 4 x * cos 2 x dx from 0 to pi 2    integrate sin 4 x * cos 5 x dx from 0 to pi 2    integrate sin 4 x * cos 6 x dx from 0 to pi 2    integrate sin 4x )/( sin x dx from 0 to pi 2    integral 0 to pi e ^ 2x sin pi / 4 + x dx