（1）、f（x）=3sin^2（wx+θ）+根号3sin（wx+θ）cos（wx+θ）-3/2
=根号3/2sin(2wx+2θ)+3/2[2sin^2（wx+θ）-1]
=根号3/2sin(2wx+2θ)+3/2cos(2wx+2θ)
=根号3[1/2sin(2wx+2θ)+根号3/2cos(2wx+2θ)]
=根号3[sin(2wx+2θ)cosπ/3+cos(2wx+2θ)sinπ/3]
=根号3sin(2wx+2θ+π/3)
因为f（x）的T=π,所以T=2π/2w=π,即：w=1,
所以f（x）=根号3sin(2x+2θ+π/3)
又x=π/12是其对称轴
所以2*（π/12)+2θ+π/3=kπ+π/2,k属于整数,即：θ=kπ/2,k属于整数
所以θ=π/2,故f（x）=根号3sin(2x+π+π/3)=-根号3sin(2x+π/3).
（2）、因为0=