若将y=sin(5x+π/6）,x∈R
变为y=sinx,x∈R
该怎么变动原图像?
将y=sin(5x+π/6）的横坐标伸长到原来的5倍,得
y=sin(x+π/6),
再向右平移π/6个单位,得
y=sinx