Question

Prove: if $\bf{AB^T}$ is skew-symmetric and $\bf A$ full-rank, then $\bf{AX}=\bf B$ has unique solution $\bf X$

score 152 · Answer 1 · 2026-03-26 01:29:17

152

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Prove: if $\bf{AB^T}$ is skew-symmetric and $\bf A$ full-rank, then $\bf{AX}=\bf B$ has unique solution $\bf X$

Published on 26 Mar 2026 - 1:29

score 476 · Answer 2 · 2026-04-12 08:01:50

476

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When does a system of linear equations have no solution?

Published on 12 Apr 2026 - 8:01

score 79 · Answer 3 · 2026-04-14 04:19:57

79

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Optimal portfolio weight derivation.

Published on 14 Apr 2026 - 4:19

score 221 · Answer 4 · 2026-04-16 18:06:42

221

Views

Solve the system : $ x^2 + x - 1 = y $, $ y^2 + y - 1 = z $, $ z^2 + z - 1 = x $ .

Published on 16 Apr 2026 - 18:06

score 98 · Answer 5 · 2026-04-10 14:33:44

98

Views

Help with Linear Algebra Questions

Published on 10 Apr 2026 - 14:33

score 59 · Answer 6 · 2026-04-12 05:54:31

59

Views

Constructing a parallelepiped with all faces having equal diagonals, what goes wrong?

Published on 12 Apr 2026 - 5:54

score 30 · Answer 7 · 2026-04-13 21:46:26

30

Views

what is the full formulation of this expression?

Published on 13 Apr 2026 - 21:46

score 53 · Answer 8 · 2026-04-14 15:02:22

53

Views

mathematical expression for arithmetic sequence with 3 variables where 1 of them is known

Published on 14 Apr 2026 - 15:02

score 145 · Answer 9 · 2026-04-10 20:57:02

145

Views

Possible application of the implicit function theorem

Published on 10 Apr 2026 - 20:57

score 59 · Answer 10 · 2026-04-15 05:31:08

59

Views

The link between matrix's rank to a specific solution set

Published on 15 Apr 2026 - 5:31

score 61 · Answer 11 · 2026-04-13 09:17:28

61

Views

Solution of this specific (equation with trigonometric terms) system of equations?

Published on 13 Apr 2026 - 9:17

score 65 · Answer 12 · 2026-04-10 18:36:22

65

Views

Textbooks on basic algebra (with exercises)

Published on 10 Apr 2026 - 18:36

score 92 · Answer 13 · 2026-04-12 10:20:04

92

Views

How to isolate one of the terms or derive an expression to arrive at one of them from given expressions

Published on 12 Apr 2026 - 10:20

score 29 · Answer 14 · 2026-04-12 03:50:32

29

Views

Non-pivotal columns of a row-reduced matrix in relation to linear independence

Published on 12 Apr 2026 - 3:50

score 162 · Answer 15 · 2026-04-16 16:58:01

162

Views

Let $a^2+b^2=1,c^2+d^2=1$ and $ac+bd=0.$ Prove that $a^2+c^2=1, b^2+d^2=1$ and $ab+cd=0.$

Published on 16 Apr 2026 - 16:58

List Question

Prove: if $\bf{AB^T}$ is skew-symmetric and $\bf A$ full-rank, then $\bf{AX}=\bf B$ has unique solution $\bf X$

When does a system of linear equations have no solution?

Optimal portfolio weight derivation.

Solve the system : $ x^2 + x - 1 = y $, $ y^2 + y - 1 = z $, $ z^2 + z - 1 = x $ .

Help with Linear Algebra Questions

Constructing a parallelepiped with all faces having equal diagonals, what goes wrong?

what is the full formulation of this expression?

mathematical expression for arithmetic sequence with 3 variables where 1 of them is known

Possible application of the implicit function theorem

The link between matrix's rank to a specific solution set

Solution of this specific (equation with trigonometric terms) system of equations?

Textbooks on basic algebra (with exercises)

How to isolate one of the terms or derive an expression to arrive at one of them from given expressions

Non-pivotal columns of a row-reduced matrix in relation to linear independence

Let $a^2+b^2=1,c^2+d^2=1$ and $ac+bd=0.$ Prove that $a^2+c^2=1, b^2+d^2=1$ and $ab+cd=0.$

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