What is the period of #f(t)=cos 3 t #?

Question

1969 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-01-19T19:23:08

Natural frequency of cos function is #2pi#
now then what you have is #2pi = 3t#
#therefore Period => t = (2pi)/3 #
that 3 times faster