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Old May 1st, 2008, 06:45 PM
Mathstud29 Mathstud29 is offline
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Quote:
Originally Posted by stones44 View Post
So there is wall...the top has 1 brick, then the next row has 3 bricks, then 5 bricks etc. there are 2500 bricks in the wall then how many rows are there

im just really confused with arithmetic series right now and need general help with them too....

pref. without using some formula but a more explanative version

This would be a series of the odd numbers so it would be \sum_{i=0}^{n}2i+1

can you find n from that?
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