Difference between revisions of "User:CantonMathGuy"
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| − | <math>( | + | <math>(a_1+a_2+\cdots+a_n)^2=a_1^2+a_2^2+\cdots+a_n^2+2a_1a_2+2a_1a_3+\cdots+2a_{n-1}a_n</math> |
Revision as of 20:25, 22 June 2010
