Wikipedia:Sandbox

--209.66.201.13 (talk) 14:23, 29 July 2008 (UTC)michelle

test one more as anonymous

${\begin{aligned}1+(1+2)+(1+2+3)+...+(1+2+3+...+n)\\&=\sum _{m=1}^{n}\sum _{k=1}^{m}k\\&=\sum _{m=1}^{n}{\frac {1}{2}}m(m+1)\\&={\frac {1}{2}}\sum _{m=1}^{n}(m^{2}+m)\\&={\frac {1}{2}}\sum _{m=1}^{n}m^{2}+{\frac {1}{2}}\sum _{m=1}^{n}m\\&={\frac {1}{12}}[n(n+1)(2n+1)]+{\frac {1}{4}}[n(n+1)]\end{aligned}}$

{{Football club infobox |

   fullname = Christian Escobar|
 nickname = Chris, The Real, The Real OG 32|  

This page is about river in.... For other uses, see [[:Wolf River]].

The Legendary, Chris Escobar played football at Canyon High School from 1995-1999. There he earned a full athletic scholarship playing for the Michigan Wolverines. He only attended school for 2 years there because he was beat out by future NFL Player Anthony Thomas. During High School he was known as one of the popular power rangers in a hit TV show in the late 90's. He has also gone back to Canyon High in recent years to Coach football on the Freshman team to share his knowledge of the game.

Population Intervention Comparator Outcome Study Design