I have the Fourier series. What I want to do is find the first 3 terms and then find the bandwidth
Here is what the first 3 terms are:
$\sin(2πf_1t+\frac{π}{2}) + \frac{1}{9}sin(6πf_1t+\frac{π}{2}) + \frac{1}{25}sin(10πf_1t+\frac{π}{2}) $
Now Im not sure how I can find the lowest and the highest frequency from this answer? Could anyone give me some hints? Thank you