Mathematics
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chesslad
  • Member for 5 years
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All Questions Answers
Score Newest
answer
11
Positive definite matrix must be Hermitian
Nov 13, 2019
question
6
In how many ways can we arrange the English alphabet so that exactly $10$ of the letters lie between $A$ and $Z$?
Oct 31, 2019
question
6
Proof verification : $\mathbb{Q}$ is countable
Sep 11, 2019
question
6
If for metric space $(X,d)$ we have $d(A,B)>0$ for any pair of non empty closed disjoint subsets $A$ and $B$. Show that $(X,d)$ is complete.
Oct 28, 2019
question
4
How to find $\dim( \operatorname{span}(M)+ \operatorname{span}(N))$ and $\dim(\operatorname{span}(M\cap N))$?
Jan 27, 2019
question
4
How to prove this combinatorial identity without using committee argument but direct manipulation?
Nov 6, 2019
question
4
$a_n=(-1)^{n-1}, \; s_n=\sum_{i=1}^{n}a_i$ then find $ \lim_{n\to \infty}\frac{s_1+s_2+\dots s_n}{n}$
Feb 5, 2019
question
4
Radius of convergence of $\sum_{n=0}^{\infty}(2^n)x^{n^2}$
Feb 6, 2019
question
3
$A\in M_n(R)$ be invertible, ler $x,y\in R^n$ with $x\neq 0, y^TA^{-1}x\neq 0$. Define $B=xy^TA^{-1}$
Nov 23, 2019
question
3
Convergence of $p^{\text{th}}$ quantile estimator for sample from Exponential distribution
Sep 22, 2022
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22
How to enable 3-finger drag in Catalina?
8
How to enable 3-finger drag in Catalina?

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