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**1. find the complex Fourier series and the real Fourier series**

f(t) = 0 , -pi <= t < 0, f(t)= t, 0<=t< pi

f(t) = 0 , -pi <= t < 0, f(t)= t, 0<=t< pi

## Homework Equations

**3. to find the coefficient ck i got 2 different answers one is if the index k is even and another if the index is odd, how am i supposed to represent this in the Fourier series?**