y=m*n=(√3*cosx-sinx)*(2cosx)+1*(a-√3)=2√3*cos^(2)x-2sinxcosx+a-√3=√3(2cos^(2)x-1)-2sinxcosx+a=√3cos2x-sin2x+a=2cos[2x+(π/6)]+aX∈(0 ,π/2)时,2x+(π/6) ∈(π/6 ,7π/6),则cos[2x+(π/6)]∈[-1,1/2]...