# Fourier Series

1. We are supposed to find a fourier series knowing only f(t)= acos(kt)+bcos(kt)
and some values of fourier coefficients...

2. im using ck=1/2pi $$\intf(t)e-ikt$$dt

3. are we supposed to convert f(t) into expnential form? i got 4 different expos thus 4 integrations, i have no idea which method i should solve it...

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