- #1
pags920
- 21
- 0
I am trying the period of 2 cosine functions that are multiplied with each other, but I am blanking out on how to find them.
For example, given a function like:
x(t) = cos(10*pi*t)cos(20*pi*t)
I know it has something to do with the frequency of both functions (10*pi & 20*pi), but I cannot remember it and I cannot find it anywhere else. If someone can give me the first part or two of trying to find it, I am hoping it will click.
Any help will be greatly appreciated!
Nick
For example, given a function like:
x(t) = cos(10*pi*t)cos(20*pi*t)
I know it has something to do with the frequency of both functions (10*pi & 20*pi), but I cannot remember it and I cannot find it anywhere else. If someone can give me the first part or two of trying to find it, I am hoping it will click.
Any help will be greatly appreciated!
Nick