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Ben Alpert

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1,774 reputation
925
bio website benalpert.com
location United States
age 20
visits member for 2 years, 10 months
seen yesterday
stats profile views 347

Khan Academy / Carnegie Mellon
1,774 reputation
 bio website benalpert.com visits member for 2 years, 10 months
925 badges
 location United States seen yesterday
summary answers questions tags badges favorites bounties reputation activity

13 Answers

newest activity votes
39
How can you prove that the square root of two is irrational?
14
Why is the 2nd derivative written as $\frac{\mathrm d^2y}{\mathrm dx^2}$?
14
Probability that a stick randomly broken in two places can form a triangle
11
Combinations of selecting n objects with k different types
10
Balance chemical equations without trial and error?
9
Proof that $n^3+2n$ is divisible by 3
8
Can there be two distinct, continuous functions that are equal at all rationals?
7
Can you recommend a decent online or software calculator?
5
Probability of Heads in a coin
4
Proof that $n^3+2n$ is divisible by 3
2
How do I convert from Cartesian to conical coordinates?
1
Looking for a book similar to “Think of a Number”
1
What can we conclude from correlation?
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