cos(2x+(pi)/(3))" at "x=(pi)/(3)

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

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

Prove that cos x+cos((2 pi)/(3)-x)+cos((2 pi)/(3)+x)=0

Find the sum of maximum and minimum values of cos x cos((2 pi)/(3)+x)cos((2 pi)/(3)-x)

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

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

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

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

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