(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Prove that [itex]\Sigma[/itex][itex]^{n}_{k=1}[/itex] w_{k}= 0

and there has to be at least two phasors/exponentials

2. Relevant equations

complex analysis

3. The attempt at a solution

I tried writing out the sigma on the first line.

Then I tried writing the same thing with n+1 on the second line.

Then I tried to divide the first exponential of the n+1 line by the first exponential of the first line, called A.

Then I divided the bottom by A, which should factor to get the first line as a factor, but could still not get the first line from the n+1, second line.

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# Homework Help: Show the roots of unity add up to zero.

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