已知函数f(x)=sin(wx+π/6)+sin(wx-π/6)-2cos^2 wx/2,x∈R（其中w>0)（1）求函数f(x)的值域（2）若函数y=f(x)的图像与直线y=-1的两个相邻交点间的距离为π/2,求函数y=f(x)的单调区间

已知函数f(x)=sin(wx+φ)(w 已知函数f(x)=sin(wx+φ)(w 已知函数f(x)=sin(wx+φ)(w 已知函数f(X)=sin(Wx+&)(W>0,0 已知函数f（x）=sin（wx+π/6）+sin（wx-π/6）-2cos²wx/2,x∈R（其中w＞0,）(1)求函数f（x）的值域 [非常急]已知函数f(x)=根号3sin(wx+φ)-cos(wx+φ)(0 已知函数f(x)=根号3sin(wx+φ)-cos(wx+φ)(0 已知函数f(x)=√3sin(wx+φ)-cos(wx+φ)(0 已知函数f(x)=根号3sin(wx+a)-cos(wx+a)(0 已知函数f(x)=根号3sin(wx+φ)-cos(wx+φ)(0 已知函数f(x)=√3 sin( wx+φ)-cos(wx+φ) (0 已知函数f(x)=根号3sin(wx+fai)-cos(wx+fai)(0 已知函数f(x)=√3 sin( wx+φ)-cos(wx+φ) (0 已知函数f(x)=√3sin(wx+φ)-cos(wx+φ)(0 已知函数f(x)=2sin(wx+φ),x属于R,w>0,-π 设函数f(x)=sin(wx+t)(-π/2 设函数f(x)=sin(wx+t)(-π/2 已知函数f(x)=2sin(wx+a)(a>0,-π/2