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maverick
  • Member for 8 years, 2 months
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9 votes

Is $x^2+x-1$ squarefree?

8 votes
Accepted

Expand $\tan^{-1}x$ as infinite series

7 votes
Accepted

$a_{n+1}=\frac{a_n}{2}+\frac{2}{a_n}$ for $n \geq 0$. Prove that $a_{n+1} \leq a_n$ for all $n \in \Bbb N$.

4 votes

Simple graph with 5 vertices with degree sequence (3,3,3,3,4)

3 votes

How to sketch $(y^2-2)^2+(x^2-2)^2=2$?

3 votes

Computing shortest path including specific edge

2 votes

2^(x-1) + 2^(x-2) + 2^(x-3) < 2^x

1 vote

Complete Bipartite Graph. Define $K_{mn}$

1 vote

Division of integers by 5

1 vote

Prime factorization and hcf

1 vote

Any prime $p$ between $n + 1$ and $2n + 1$ divides ${2n + 1} \choose {n}$

0 votes
Accepted

Number of connected components

0 votes

How to solve $\sqrt{2}\cdot(\frac{1}{\sqrt{2}}-\frac{1}{\sqrt{2}}i)^{71}$ by hand?

0 votes

Finding $x$ such that $2x^2-2x+1=(2m+1)^2$

0 votes

Ways of forming palindromic strings

0 votes
Accepted

Number of distinct numbers that can be obtained

0 votes

How to get the minimal number of solutions

-1 votes

How many ways I can permute the $n$ digits binary without counting the neighboring $1$s?