Question

What is the frequency of `f(theta)= sin 24 t - cos 54 t`?

Answer 1

`pi`

Explanation:

Frequency of `sin 24t --> (2pi)/24 = pi/12`
Frequency of `cos 54t --> (2pi)/54 = pi/27`
Find least common multiple of `pi/12 and pi/27`

`pi/12 ... X ...(12)... --> pi`
`pi/27 ... X ...(27)... --> pi`

Frequency of f(t) -->`pi`