Question

Find the fundamental period of f when
f(x) = 3 cos(5x)

Answer 1

period of
\[\cos(bx)\] is
\[\frac{2\pi}{b}\]

Answer 2

i assume "fundamental period" is a synonym for "period'

Answer 3

I wasn't sure , i know how to find the period but i dont know if it is the same thing

Answer 4

a google search tells me it is the smallest number p for which
\[f(x)=f(x+p)\] so yes it is the same as in common usage

Answer 5

ooh ok