Question

What is the frequency of `f(theta)= sin 3 t - cos 17 t`?

Answer 1

`2pi`

Explanation:

Frequency of sin 3t --> `(2pi)/3 = (2pi)/3`
Frequency of cos 17t --> `(2pi)/17`
Find the least common multiple of `(2pi)/3 and (2pi)/17`

`(2pi)/3` ... x (3) ... --> `2pi`
`(2pi)/17` ...x (17)... --> `(2pi)`
Frequency of f(t) --> `2pi`