Question

What is the frequency of `f(theta)= sin 12 t - cos 7 t`?

Answer 1

`2pi`

Explanation:

Frequency of sin 12t --> (2pi)/12 = pi/6
Frequency of cos (7t) --> (2pi/7)
Frequency of f(t) -->`2pi`
`2pi` is least multiple.
`(pi/6)` x 12 --> `2pi`
`(2pi/7)` x 7 --> `2pi`