List questions from linear-algebra

Published on 25 Mar 2026 - 3:02

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Let $Q$ and $P$ be $n\times n$ matrix, then $PQ$ and $QP$ have the same eigenvalues

Published on 25 Mar 2026 - 9:50

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How do I calculate in meters how far away I am with Latitude and longitude?

Published on 20 Jan 2018 - 10:22

816

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GCD as linear combination of two numbers

Published on 22 Mar 2026 - 11:42

153

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Non-homogeneous equations system solution number

Published on 17 Mar 2026 - 7:14

103

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Dimension of sum and intersection of subspaces

Published on 20 Jan 2018 - 12:38

48

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Symmetry subgroup of a cube

Published on 20 Mar 2026 - 16:33

278

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Eigenvalues of an element in a field extension

Published on 19 Mar 2026 - 15:32

255

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Why $\displaystyle\lim_{n\to+\infty}x_n\otimes y_n=x\otimes y\;?$

Published on 22 Mar 2026 - 5:04

141

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What is the value of $2x+3y$?

Published on 24 Mar 2026 - 16:21

143

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Give the cutting-plane proof of $\sum\limits_{i,j = 1}^4 x_{ij} \leq 9$.

Published on 23 Mar 2026 - 1:01

763

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Use Gershgorin's theorem to show that a matrix is nonsingular

Published on 21 Mar 2026 - 0:47

321

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Give an example of a vector space which has 125 elements

Published on 25 Mar 2026 - 3:07

99

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Set of the all sequences of real numbers $x = (x_1,x_2,...,x_n,...)$ with $\sum_{n=1}^{\infty}{x_i}^2 < \infty$

Published on 25 Mar 2026 - 4:43

129

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Necessary condition for a matrix equation to be zero

Published on 20 Mar 2026 - 1:17

List Question

Image of linear map and the image of its dual

Let $Q$ and $P$ be $n\times n$ matrix, then $PQ$ and $QP$ have the same eigenvalues

How do I calculate in meters how far away I am with Latitude and longitude?

GCD as linear combination of two numbers

Non-homogeneous equations system solution number

Dimension of sum and intersection of subspaces

Symmetry subgroup of a cube

Eigenvalues of an element in a field extension

Why $\displaystyle\lim_{n\to+\infty}x_n\otimes y_n=x\otimes y\;?$

What is the value of $2x+3y$?

Give the cutting-plane proof of $\sum\limits_{i,j = 1}^4 x_{ij} \leq 9$.

Use Gershgorin's theorem to show that a matrix is nonsingular

Give an example of a vector space which has 125 elements

Set of the all sequences of real numbers $x = (x_1,x_2,...,x_n,...)$ with $\sum_{n=1}^{\infty}{x_i}^2 < \infty$

Necessary condition for a matrix equation to be zero

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