已知函数f(x)=sin(wx+π/6)+sin(wx-π/6)-2cos^2 wx/2 w＞0

f(x)=sin(ωx+π/6)+sin(ωx-π/6)-2cos^2(ωx/2)
=sinωxcosπ/6+cosωx sinπ/6+sinωxcosπ/6-cosωx sinπ/6-1+cosωx
=√3sinωx+cosωx-1
=2sin(ωx+π/6)-1
∵-2≤2sin(ωx+π/6)≤2
∴-3≤2sin(ωx+π/6)-1≤1
值域[-3,1]
"此图像与直线y=-1的宪哥相邻极爱哦点的距离为π/2"
看不懂