Question

What is the frequency of `f(t)= sin 3 t - cos 10 t`?

Answer 1

`2pi`

Explanation:

Period of sin 3t --> `(2pi)/3`
Period of cos 10t --> `(2pi)/10 = pi/5`
Least common multiple of `(2pi)/3 and pi/5` is `2pi`
Period of f(t) --> `2pi`