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19
votes
Calculus proof for the area of a circle
calculus
circle
asked Aug 28 '12 at 16:34
math.stackexchange.com
5
votes
I want to study mathematics ahead of high school, but I found that I'm rusty on the elementary stuff
geometry
algebra-precalculus
reference-request
asked Jan 11 '12 at 8:11
math.stackexchange.com
5
votes
How to compute the sum of every $k$-th binomial coefficient?
combinatorics
complex-numbers
binomial-coefficients
summation
asked Mar 13 at 18:23
math.stackexchange.com
Top Answers
5
Is this proof about $a^3>a \rightarrow a^5>a $ correct?
math.stackexchange.com
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