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Top Questions
10
votes
Accessing environment variables within a document
programming
asked Aug 15 '10 at 0:42
tex.stackexchange.com
9
votes
Substituting character $l$ with $\ell$ throughout math mode
math-mode
symbols
asked Aug 18 '10 at 18:15
tex.stackexchange.com
8
votes
Adjusting vertical alignment of underbraces
vertical-alignment
braces
asked Aug 15 '10 at 3:24
tex.stackexchange.com
6
votes
Proving an upper bound for Prob[X>=E[X]]
probability
asked Sep 27 '10 at 4:23
math.stackexchange.com
Top Answers
13
How to prove this binomial identity $\sum_{r=0}^n {r {n \choose r}} = n2^{n-1}$?
math.stackexchange.com
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