Prove any one of the following:`cos^2A+cos^2(A+pi/3)+cos^2(A-pi/3)=3/2`

Similar Questions

Explore conceptually related problems

Prove any of the following 2 sin^2(pi/6)+cosec^2(7pi/6)cos^2(pi/3)=3/2

Solve any one of the following cos x+sqrt(3) sin x=2

Prove any one of the following : (1+cos pi/8)(1+cos 3pi/8)(1+cos 5pi/8)(1+cos 7pi/8)=1/8

Prove any one of the following: cos 6A=32 cos^6 A-48 cos^4A+18 cos^2A-1

Solve any one of the following cos x+sin x=sqrt(2)

Prove any of the following: sin^2(pi/4)+sin^2(3pi/4)+sin^2(5pi/4)+sin^2(7pi/4)=2

Prove any of the following sin^2(pi/8)+sin^2(3pi/8)+sin^2(5pi/8)+sin^2(7pi/8)=2

Prove any one of the following: (sin 5A-2sin 3A+sin A)/(cos 5A-cos A)=tan A

Prove any one of the following : cos (pi/32)=1/2sqrt[2+sqrt{2+sqrt (2+sqrt 2)}]

Prove any one of the following : sin^2A+sin^2B+sin^2C=2+2cos A cos Bcos C when A+B+C=pi .