http://www.savagehost.com/how-do-you-simplify-3-composite-sums.html Just another WordPress weblog Tue, 02 Mar 2010 23:13:58 -0600 http://wordpress.org/?v=2.8 hourly 1 http://www.savagehost.com/how-do-you-simplify-3-composite-sums.html/comment-page-1#comment-3849 testmath… Fri, 10 Jul 2009 04:22:34 +0000 http://www.savagehost.com/how-do-you-simplify-3-composite-sums.html#comment-3849 That's the same as 7-sigma- k=1. So the answer is 1+1+1+1+1+1+1 = 7 That’s the same as 7-sigma- k=1. So the answer is 1+1+1+1+1+1+1 = 7

]]> http://www.savagehost.com/how-do-you-simplify-3-composite-sums.html/comment-page-1#comment-3848 testmath Thu, 09 Jul 2009 22:26:15 +0000 http://www.savagehost.com/how-do-you-simplify-3-composite-sums.html#comment-3848 you have to start form rigth to left the first one is from the right is equal to j now the second is equal to i(i+1)/2 the last one is 1(1+1)2 + 2(2+1)/2+ . . .+7(7+1)/2 =84 you have to start form rigth to left
the first one is from the right is equal to j
now the second is equal to i(i+1)/2
the last one is 1(1+1)2 + 2(2+1)/2+ . . .+7(7+1)/2
=84

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