Mathematics
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Zuy
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All Questions Answers
Score Newest
answer
18
What is the logical flaw in this reasoning? Abusing $T \equiv T \vee F$.
Aug 22, 2021
answer
10
Negative Numbers in Math & Physics
Aug 28
answer
10
Algebraic proof that $\sum\limits_{k=0}^{n} {n \choose k}\cdot \frac{(-1)^k}{(k+1)(k+2)} = \frac{1}{n+2}$
Jan 19, 2022
answer
9
Show that, if $n$ is even, then the polynomial $p(x) =x^n + x^{(n-1)}+...+x+1$ does not have real roots.
Aug 26
answer
8
Does $f(a,b)$ being directly proportional to $a$ and $b$ separately imply that $f(a,b)$ is directly proportional to $ab?$
Dec 3, 2021
answer
7
The empty set fails to satisfy only one of the axioms of vector spaces. Which one? ("Linear Algebra Done Right" by Sheldon Axler.)
Jun 21, 2021
question
6
Max. distance of 2D random walk
Dec 22, 2019
answer
6
If a bounded sequence $\{a_n\}$ has no convergent subsequence, is it true that $|a_n−a_m|≥ \epsilon$ for some $\epsilon$ for all $n , m$
Dec 3, 2021
answer
6
Find the algebraic dimension of space of matrices
Nov 9, 2022
question
5
Let $R$ be a closed equivalence relation on a Hausdorff space $X$. Show that $X/R$ is Hausdorff. [duplicate]
Dec 8, 2019

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