为了得到函数y=sin(2x+π/6),可y=cos2x的图像向

分类: 作业答案 • 2021-12-18 21:42:28

问题描述：

答

y=sin(2x+π/6)
=cos[π/2-(2x+π/6)]
=cos(-2x+π/3)
=cos(2x-π/3)
=cos[2(x-π/6)]
左加右减
所以向右移π/6