Trig Help (finding period/inverses)

How would you find the period of the trig function 2cos1/3x? And sinπx/24?

For or , the period is:

Ok, so the period for the first equation is 2pi/(1/3)?
And the second is 2pi/(xpi/24)?

For the first, you may simplify by using 1/(1/3) = 3, and for the second, you do not include x, and you may divide out pi, and bring the 24 up to the numerator.