関連ワード:  integral sin^2 theta d'theta    integral sin 2 theta d theta    integrate sin 2 theta d theta from 0 to 2pi    integrate sin 2 theta d theta from 0 to pi    integration of 1 sin 2 theta d theta    integral cos^2 theta/ sin theta d'theta    integral sin^3 theta * cos^2 theta d'theta    sin 2 theta d theta ka integration    integral e^2 theta sin(3 theta)d'theta    integral 0 to pi/2 sin^theta+cos^theta d'theta