Find the period of the function
`f(x) = (sin x + sin 3x)/(cos x + cos 3x)`

The period of the function f(x) = | sin 2x | + | cos 8x | is

Find the period of the function f(x) = log (2 + cos 3x)

The period of the function f(x)=|sin x|+|cos x| is

The period of the function f(x)=( sin 8x cos x-sin 6x cos 3x )/(cos 2x cos x- sin 3x sin 4x ) is

The period of the function f(x) = (sin x + sin 3x - sin 5x + sin 7x)/(cos x + cos 3x + cos 5x + cos 7x) is

Th period of the function f(x) = | sin x|+| cos x | is

Find period of the following functions f(x) = cos x cos 3x

The period of the function f(x)=|sin 3x|+| cos 3x| , is

The period of the function f(x)=|sin 3x|+| cos 3x| , is

Find the period of the function f(x) = sin((pi x)/3) + cos ((pi x)/2) .