Mathematics
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Revoltechs
  • Member for 6 years, 6 months
  • Last seen more than 1 year ago
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question
3
Prove that for any integer $a$, $9\nmid(a^2-3)$.
Apr 29, 2019
question
2
Vector equation of line containing point and perpendicular to plane [duplicate]
Feb 1, 2016
question
2
If $p>5$ is prime and $2p+1$ is prime, then $4p+1$ is composite.
Apr 27, 2019
question
1
Does the sequence $x_{n+1}=x_n+x_n^2$ converge to $0$ whenever $-1\lt x_0\lt0$?
Apr 16, 2021
question
1
Prove that $(1+x)^n>1+nx$ for all integers $n\geq2$, where $x>-1$ and $x\neq0$.
May 9, 2019
question
1
What does $\mathbb{R}_0^+$ mean?
May 26, 2019
question
1
Proof that $\forall k\in\mathbb Z^+$, $\lfloor\log_2(2k+1)\rfloor=\lfloor\log_2(2k)\rfloor$
Dec 3, 2019
question
1
Prove: $\forall a\in\mathbb R$, $\max\{y=x(a-x):x\}=\frac{a}{2}$
Jan 26, 2020
question
1
Prove that if $a\nmid b$, $ax^3+bx+(b+a)=0$ has no natural number solutions
Jan 27, 2020
question
1
$\forall n\in\mathbb N$, let $A_n=\{x\in\mathbb R\mid n-1\lt x\lt n\}$. Prove that $\displaystyle\bigcup_{n\in\mathbb N}A_n=(\mathbb R^+-\mathbb N)$.
Feb 23, 2020

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