Calculating Fourier Series for an Odd Function

[ganondorf29]

Homework Statement

f(t) is given as:

from 0 to 0.2s, f(t) = 5
from 0.2s to 0.6s, f(t) = 0
from 0.6s to 0.8s, f(t) = 5,
etc

Homework Equations

for an odd function

a0 = 2/p * integral(from -p/2 to p/2) of f(t) dt

bn = 4/p * integral(from 0 to p/2) of f(t)*sin(2*pi*n*t/p) dt

The Attempt at a Solution

The problem is that since the function is "off" for a longer period than it is "on"; I'm not sure how to incorporate that into the Fourier Series, especially the bn term

 

[vela]

The function f(t) is neither odd nor even, so you have to use the general formulas for the coefficients, both the a's and b's.