int cos2x cos4x*cos6x

Evaluate the following integrals: int cos2x cos 4x cos6x dx .

Find the integrals of the functions cos2x cos4x cos6x

Integrate the following functions: cos2x cos4x cos6x

Prove that 1+cos2x+cos4x+cos6x =4cosx cos 2x cos 3x

Prove that 1+cos2x+cos4x+cos6x=4cosxcos2xcos3x .

Prove that: 1+cos2x+cos4x+cos6x=4cos x cos2x cos3x

The value of int_( sin )x cos x cos2x cos4x cos8x cos16x)dx is int(sin x cos x cos2x cos4x cos8x cos16x)dx is equal to