Mathematics
Simon Fraser's user avatar
Simon Fraser's user avatar
Simon Fraser's user avatar
Simon Fraser
  • Member for 3 years, 11 months
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All Questions Answers
Score Newest
answer
8
Why is $\forall x\in \mathbb{N},\exists y\in \mathbb{N}, x\leq y $ false?
Oct 22, 2019
answer
6
Proving $A \subset B \implies A \cup B = B$
Oct 27, 2019
answer
6
A school class of 20 students is to pose with a team for the Mathematics Olympics. The team can consist of any number of (1,2,3, ..., 20)
Nov 3, 2019
answer
4
Suppose $B \subseteq A$ and $ R = \{(X,Y) \in \mathscr P(A) \times \mathscr P(A) \mid X\Delta Y\subseteq B\}$ Prove $R$ is an equivalence relation.
Oct 27, 2019
answer
4
If $n>3$ is not prime, show that we can find positive integers $a,b,c$ such that $n=ab+bc+ca+1$.
Jan 1, 2020
answer
4
Find the $1000$th digit after the decimal point of $\sqrt{n},$ where $n=\underbrace{11\dots1}_{1998 \text{ 1's}}$
Oct 27, 2019
answer
4
How many solutions are there to the equation $x_1 + x_2 + x_3 + x_4 +x_5= 10$ where $x_1, x_2, x_3, x_4, x_5$ are positve integers?
Dec 29, 2019
answer
4
$10000=abc$ with $a,b,c$ natural numbers don't have digit $0$. Smallest possible value of $a+b+c$ is?
Oct 23, 2019
answer
4
If $m$ and $n$ are integers and $mn$ is even, $m$ is even or $n$ is even.
Dec 18, 2019
answer
3
Why can't we use Linearity of Expectations?
Oct 27, 2019

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