Complex exponential Fourier series coefficients?

AI Thread Summary
The discussion revolves around a request for assistance with complex exponential Fourier series coefficients, specifically at a point of confusion in the calculations. The user has reached a formula for the coefficients but is unsure how to proceed from there. Another participant suggests that the user may have differentiated instead of integrated while calculating the coefficients, indicating a potential error in their approach. The importance of showing work is emphasized to facilitate better guidance. Clarification on the correct method is needed to resolve the user's issue effectively.
thecastlingking
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signals q.PNG


Above is a question I need some help with. I can get to a certain point, but I can't get beyond.
Can somebody with knowledge about this help?
 

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Cn = 3/2 Sa(nπ/2)e-(jnπ)/2
That is where I get up to, but I don't know what to do from there.
The answer given is: 0 and 3/(jnπ)
 
thecastlingking said:
Cn = 3/2 Sa(nπ/2)e-(jnπ)/2
That is where I get up to, but I don't know what to do from there.
The answer given is: 0 and 3/(jnπ)
You need to show your work. It looks like you differentiated instead of integrated when calculating the coefficients.
 
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