作业帮化简sin(80°+3α)cos(35°＋α)-cos(80°﹢3α﹚sin﹙35°﹢3α﹚
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/07 02:45:24
化简sin(80°+3α)cos(35°＋α)-cos(80°﹢3α﹚sin﹙35°﹢3α﹚
化简sin(80°+3α)cos(35°＋α)-cos(80°﹢3α﹚sin﹙35°﹢3α﹚
化简sin(80°+3α)cos(35°＋α)-cos(80°﹢3α﹚sin﹙35°﹢3α﹚
sin(80°+3α)cos(35°＋α)-cos(80°﹢3α﹚sin﹙35°﹢3α﹚
=sin[(80°+3α)-(35°＋α)]
=sin(80°+3α-35°-α)]
=sin(45°+2α)