tan(2x+π/3)=tan2(x+π/6)
tan2x=tan2(x+π/6-π/6)
因此,只需要把y=tan(2x+π/3)的图象向右平移π/6个单位即可得到tan2x=tan2(x+π/6-π/6)是为了等号后的式子变成2x所以减去π/6是么？