Hi. can anyone give me a complete solutions to the problem below.. Need urgently Find The sum of series of, Need an urgent help to solve these kind of series problem..I need the full solution part
Last edited by saggi_twist; Jan 10th 2008 at 06:15 AM. Reason: Need an urgent help to solve these kind of series problem..
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Originally Posted by saggi_twist Hi. can anyone give me a complete solutions to the problem below.. Need urgently Find the sum of series Cos3x –((1/3)*( Cos(3x)*Cos(3x)*Cos(3x))+((1/9)* Cos(9x)*Cos(9x)* Cos(9x)) – ((1/27)*Cos(27x)*Cos(27x)*Cos(27x))+….. Need an urgent help to solve these kind of series problem.. Can't you try to give this to us in a clearer manner? That is a very messy series. It's nearly impossible to figure out.
Originally Posted by janvdl Can't you try to give this to us in a clearer manner? That is a very messy series. It's nearly impossible to figure out.
Last edited by colby2152; Jan 8th 2008 at 06:50 AM. Reason: x's as n's?
I think it's Which can be shown in sum notation,
Is there a summation formula for, ? I was able to reduce your sum to that sum.
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