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user3019105

Apparently, this user prefers to keep an air of mystery about them.

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  • Member for 5 years
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  • Last seen Nov 16 at 12:45

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Top posts (21) All Questions Answers | Votes Newest

10 Proof that every number ≥ $8$ can be represented by a sum of fives and threes. Mar 9 '15
5 What are the ways to solve trig equations of the form $\sin(f(x)) = \cos(g(x))$? Jul 8 '15
3 How is the Binet's formula for Fibonacci reversed in order to find the index for a given Fibonacci number? Nov 14 '14
3 What is the formula for the density of a multigraph (both undirected and directed)? Mar 11
2 Combinatorics permutations of $n$ elements of which $k$ are optional and $n - k$ are mandatory Apr 6 '18
1 Why the number of subsets S ⊂ {1,…,n} without an odd number of consecutive integers is F(n+1)? Nov 12 '14
1 Probability of two persons to sit next to each other in a plane Nov 3 '18
1 Graham's number of layer 1 tetration explanation? Mar 15 '15
1 Prove that the sum of the first $n$ even terms of the Fibonacci sequence is given by $(F_{3n} + F_{3n + 3} - 2) / 4$ not using induction? May 4 '15
1 How to rewrite $\pi - \arccos(x)$ as $2\arctan(y)$? Jul 9 '15
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