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Determine the sum of the following: 

\(S_n=0+3*1*5*7+3*2*6*8+...+3(n-1)(n+3)(n+5)\)

 Aug 13, 2018
 #1
avatar+27795 
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As follows:

 

 

.

 Aug 13, 2018
edited by Alan  Aug 14, 2018
 #2
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Nice, Alan  !!!!!

 

cool cool cool

CPhill  Aug 13, 2018

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