化简1.sin(a+p)cosa-cos(a+p)sina 2.sin(a-p)cosp+cos(a-p)sinp

来源:学生作业帮助网 编辑:六六作业网 时间:2024/05/25 23:32:44
化简1.sin(a+p)cosa-cos(a+p)sina2.sin(a-p)cosp+cos(a-p)sinp化简1.sin(a+p)cosa-cos(a+p)sina2.sin(a-p)cosp+

化简1.sin(a+p)cosa-cos(a+p)sina 2.sin(a-p)cosp+cos(a-p)sinp
化简1.sin(a+p)cosa-cos(a+p)sina 2.sin(a-p)cosp+cos(a-p)sinp

化简1.sin(a+p)cosa-cos(a+p)sina 2.sin(a-p)cosp+cos(a-p)sinp
.sin(a+p)cosa-cos(a+p)sina=sin(a+p-a)=sin(p )
sin(a-p)cosp+cos(a-p)sinp=sin(a-p+p)=sin(a)