f(x)=√3sinx/4cosx/4+(cosx/4)^2+1/2=√3/2sinx/2+1/2cosx/2+1=sin(π/6+x/2)+1单增区间(4kπ-4π/3,4kπ+2π/3),k属于Z2sinAcosB=sin(B+C)=sinA,B=π/3f(2A)=sin(π/6+A)+1最小值=1/2+1=3/2最大值=1+1=2...