Question

What is the period of `f(t)=sin( t / 30 )+ cos( (t)/ 4)`?

Answer 1

`120pi`

Explanation:

Period of sin (t/30) --> `30(2pi) = 60pi`
Period of cos (t/4) --> 4(2pi) = 8p
Least common multiple of `60pi and 8pi` is --> `120pi`
Period of f(t) --> `120pi`