cos^(2)x+cos^(2)(x+(pi)/(3))+cos^(2)(x-(pi)/(3))

The range of cos^(2)(2(pi)/(3)-x)+cos^(2)(2(pi)/(3)+x) is

The maximum value of cos ^(2)((pi)/(3)-x)-cos ^(2)((pi)/(3)+x) is

The maximum value of cos^(2)((pi)/(3)-x)-cos^(2)((pi)/(3)+x), is

The greatest value of cos^(2)((pi)/(3)-x)-cos^(2)((pi)/(3)+x) is

Prove that cos^(3)x+cos^(3)((2pi)/3+x)+cos^(3)((2pi)/3-x)=3/4 cos 3x

Extreme values of 4cos^(2)(x^(2))cos((pi)/(3)+x^(2))*cos((pi)/(3)-x^(2)) over R.

Prove that cos^2x+cos^2(x+pi/3)+cos^2(x-pi/3)=3/2 .

The value of cos^(2)x + cos^(2) (pi/3 + x) - cos x *cos(pi/3+ x) is

The maximum and minimum values of [4 cos x^(2)cos ((pi)/(3)+ x^(2))cos ((pi)/(3)-x^(2))] respectively are-