=2sinωx(ω>0)的图像与直线y+2=0的交点的纵坐标是 y=-2
2sinωx=-2
sinωx= -1
ωx=2kπ-π/2,
x=(2kπ-π/2)/ω
两个相邻公共点之间的距离为2π/3
(2(k+1)π-π/2)/ω-(2kπ-π/2)/ω=2π/ω=2π/3, ω=3
=2sinωx(ω>0)的图像与直线y+2=0的交点的纵坐标是 y=-2
2sinωx=-2
sinωx= -1
ωx=2kπ-π/2,
x=(2kπ-π/2)/ω
两个相邻公共点之间的距离为2π/3
(2(k+1)π-π/2)/ω-(2kπ-π/2)/ω=2π/ω=2π/3, ω=3