f(x)=√3sinwxcoswx+cos^2wx=1/2(2cos^2wx-1)+1/2+√3/2sin2x
=1/2cos(2wx)+√3/2sin(2wx)=sin(2wx+π/6)
T=2π/2w=2π w=0.5
f(x)=sin(x+π/6)
增区间 2kπ-π/2