函数f(x)=3sin(wx-π/6)（w>0）和g（x）=2cos（2x+φ）（0x=kπ-(π+φ)/22x+φ=2kπ==>x=kπ-φ/2∵同相,∴(π+φ)/2=π/6==>φ=-2π/3==> g(x)＝2cos(2x-2π/3)∵反相,∴-(π+φ)/2=π/3==>φ=-5π/3==> g(x)＝2co...