∫sin(5x)sin(7x)dx=

来源：学生作业帮编辑：搜搜考试网作业帮分类：数学作业时间：2024/06/25 23:34:36

∫sin(5x)sin(7x)dx=

∫sin(5x)sin(7x)dx
=(1/2)∫[cos(5x-7x)+cos(5x+7x)]dx
=(1/2)∫[cos(2x)+cos(12x)]dx
=(1/2)[(1/2)sin2x+(1/12)sin12x]
=(1/4)sin2x+(1/24)sin12x

∫sin(5x)sin(7x)dx= d(∫(sin^5 7x)dx) 求∫√(sin^3x-sin^5x)dx ∫sin(7x)cos(10x)dx=? ∫sin (4-5x) dx 不定积分∫ sin(5-3x)dx=怎么做 ∫sin(x) cos^2(x)dx 积分 e^x sin x dx = ? ∫sin²x(1-sin²x)dx是多少? ∫ (sin²x - sin⁴x) dx ∫x²sin(x³＋5)dx ∫sin^3(x)cos^2(x)dx=