Question

What is the frequency of `f(theta)= sin 2 t - cos 14 t`?

Answer 1

The frequency is `=1/pi`

Explanation:

The period of the sum of 2 periodic functionsis the LCM of their periods.

Period of `sin2t` is `=2/2pi=pi`

Period of `cos14t` is `=2/14pi=pi/7`

The LCM of `pi` and `pi/7` is `T=pi`

The frequency is `f=1/T=1/pi`