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October 27th, 2012, 12:18 PM  #1 
Newbie Joined: Oct 2012 Posts: 1 Thanks: 0  Polynomial math issues
Hi I have some math problems and I will appreciate any attempt to help me. I have tree math problems right now, and only one a few days to solve it 1. P is 9th primitive complex root of unity, find the sum 1+ 2P+3P^2+4P^3 + 5P^4 + 6P^5 + 7P^6 + 8P^7 + 9P^8. The 9th complex root of unity is not only one how am I supposed to find the sum 2. Find u(x) and v(x) which solves the equation x^4 u(x) + (1x)^5 v(x) = 1 3. Z dash(complex conjugate) = z^3 Thx. to every one in advance 
October 27th, 2012, 12:39 PM  #2  
Senior Member Joined: Aug 2012 Posts: 2,384 Thanks: 743  Re: Polinomial math issues Quote:
Probably something along those lines will work. Also, what do you know about a primitive 9th root as opposed to an arbitrary 9th root? Maybe that will help. Just ideas of how to approach this.  

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