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

The extreme values of 4 cos(x^2) cos""((pi)/3+x^(2))cos""((pi)/3-x^(2)) over R are

The extreme values of 4cos(x^(2)).cos((pi)/(3)+x^(2)).cos((pi)/(3)-x^(2)) are

The extreme values of cos x cos((2pi)/(3)+x)cos((2pi)/(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-

The value of cos(pi+x)cos(pi+x)sec^(2)x is

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

f(x)=cos^2x+cos^2(pi/3 +x)-cosxcos(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