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Pre calc

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Every formula have to stat with [tex]\textrm{[tex]}[/tex] and ends with [tex]\textrm{[/tex]}[/tex].

   
   

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Re: Pre calc

Post by Guest » Thu Sep 14, 2017 6:21 am

n + (n+1) + (n+2) + (n+3) + (n+4) + (n+5) + (n+6) + (n+7) + (n+8) = 9n + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 = 9n + 36

Re: Pre calc

Post by Guest » Thu Sep 14, 2017 12:18 am

It is a geometric progression.

Pre calc

Post by Guest » Wed Sep 13, 2017 7:46 pm

The sum of eight consecutive natural numbers, the first of which is n. Any help with this problem?

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