関連ワード:  integration of x sin 2x dx    integration of e x sin 2x dx    integration of x 2 sin 2x dx    integration of tan x sin 2x dx    evaluate integration of x sin 2x dx    integration of x sin 2x square dx    integration of x 3 sin 2x dx    integration of cos x sin 2x dx    integrate x * sin 2x dx from 0 to pi    integration of 1 sin x sin 2x dx