Re: 请教一个基本的三角问题# EE - 电子工程
h*x
1 楼
明
I think you confused when you assume that "这个似乎是高中的知识，我觉得似乎应
该可以阿". As far as my memory goes, 高中的知识 says that you can simplify the
expression a*sin(w) + b*COS(w).
From another perspective, sin(m*w) and sin(n*w) are orthogonal to each other,
and for m =1, and n =1, as in your case, sin(w) and sin(2*w+c) (c can be
whatever constant) are orthogonal, and therefore linearly independent.
This is checks also.