答:
f(x)=(cosx)^2-√3sinxcosx+2(sinx)^2-1/2
f(x)=(1/2)*cos(2x) -(√3/2)sin2x +1-cos(2x)
f(x)=-(√3/2)sin2x-(1/2)cos(2x)+1
f(x)= - sin(2x+π/6) +1
1)
f(x)的最小正周期T=2π/w=2π/2=π
2)
0
答:
f(x)=(cosx)^2-√3sinxcosx+2(sinx)^2-1/2
f(x)=(1/2)*cos(2x) -(√3/2)sin2x +1-cos(2x)
f(x)=-(√3/2)sin2x-(1/2)cos(2x)+1
f(x)= - sin(2x+π/6) +1
1)
f(x)的最小正周期T=2π/w=2π/2=π
2)
0