作业帮化简 {sin(60+α )+cos120sinα}/cosα
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/17 00:05:26
化简 {sin(60+α )+cos120sinα}/cosα
化简 {sin(60+α )+cos120sinα}/cosα
化简 {sin(60+α )+cos120sinα}/cosα
{sin(60+α )+cos120sinα}/cosα
={sin60cosα+cos60sina+cos120sinα}/cosα
=√3/2+{1/2sina-1/2sina}/cosa
=√3/2