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Dreamer
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She turned her can'ts into cans and her dreams into plans.

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50
What is the smallest positive multiple of 450 whose digits are all zeroes and ones?
Aug 25, 2016
10
40 Vertices And A Connected Graph, Minimum Number Of Edges?
Nov 7, 2016
5
Analytic Geometry proof of orthogonality in triangle geometry
Nov 2, 2016
3
Modular Inverses Question
Aug 31, 2016
3
Exponential Function Problem
Sep 1, 2016
2
Show that $n(2n + 1)(7n + 1)$ is divisible by 6 for all integers $n$ and find all integers $n$ such that $n(2n + 1)(7n + 1)$ is divisible by 12.
Aug 25, 2016
2
Prove that $\lfloor 2x \rfloor + \lfloor 2y \rfloor \geq \lfloor x \rfloor + \lfloor y \rfloor + \lfloor x+y \rfloor$ for all real $x$ and $y$. [closed]
Sep 9, 2016
2
Proof With Cyclic Quadrilateral and Circle
Sep 14, 2016
2
It is true that $\binom{\binom{n}{2}}{2} = 3\binom{f(n)}{4}$ for some function $f(n)$. What is $f(n)$?
Oct 7, 2016
2
Evaluate the sum $ 22\binom{26}{0} + 21\binom{26}{1} + 20\binom{26}{2} + \cdots + (-3)\binom{26}{25} + (-4)\binom{26}{26}. $
Oct 7, 2016