Question

How to take the determinant of $(A-\lambda I)X=0$?

score 376 · Answer 1 · 2026-04-12 03:06:32

376

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How to take the determinant of $(A-\lambda I)X=0$?

Published on 12 Apr 2026 - 3:06

score 2.1k · Answer 2 · 2026-04-17 06:35:16

2.1k

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Swapping two rows changes the sign of the determinant proof using induction

Published on 17 Apr 2026 - 6:35

score 288 · Answer 3 · 2026-04-14 06:07:04

288

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Determinant prove (Faster method to solve it)

Published on 14 Apr 2026 - 6:07

score 85 · Answer 4 · 2026-04-15 21:15:07

85

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Is the determinant of $\lambda I-A$ product of diagonal entries, if for every $\sigma\neq \sigma_0$, $a_{1\sigma(1)}\dots a_{n\sigma(n)}=0,$?

Published on 15 Apr 2026 - 21:15

score 208 · Answer 5 · 2026-04-14 01:27:36

208

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Prove that this $3 \times 3$ determinant vanishes

Published on 14 Apr 2026 - 1:27

score 77 · Answer 6 · 2026-04-11 16:29:44

77

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Linear algebra by Loehr exercise

Published on 11 Apr 2026 - 16:29

score 97 · Answer 7 · 2026-04-15 11:46:52

97

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Determinant of an $n×n$ identity matrix with two arbitrary rows

Published on 15 Apr 2026 - 11:46

score 265 · Answer 8 · 2026-04-14 04:35:57

265

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Prove $|A.B|=|A|.|B|$ using matrix algebra

Published on 14 Apr 2026 - 4:35

score 105 · Answer 9 · 2026-04-16 23:01:49

105

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Suppose $a,b,c \neq 0$. Show that $\det(1+a,1,1),(1,1+b,1),(1,1,1+c) = abc\left(1 + \frac1a + \frac1b + \frac1c\right)$

Published on 16 Apr 2026 - 23:01

score 208 · Answer 10 · 2026-03-26 09:11:28

208

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$\sqrt{\det(A^TA)}$ for transformations into lower dimensions

Published on 26 Mar 2026 - 9:11

score 397 · Answer 11 · 2026-05-10 11:41:22

397

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Fastest way to compute a determinant from a LaTeX matrix input

Published on 10 May 2026 - 11:41

score 202 · Answer 12 · 2026-05-10 14:56:11

202

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determinants in matrices

Published on 10 May 2026 - 14:56

score 2.3k · Answer 13 · 2026-05-03 08:51:24

2.3k

Views

How many sub-square matrices does a square matrix have and is there a simple formula for it?

Published on 03 May 2026 - 8:51

score 1.1k · Answer 14 · 2026-05-10 16:00:09

1.1k

Views

Cofactor expression with Levi Civita symbol

Published on 10 May 2026 - 16:00

score 38 · Answer 15 · 2026-05-10 14:50:53

38

Views

Finding real values for x that form dependet vectors

Published on 10 May 2026 - 14:50

List Question

How to take the determinant of $(A-\lambda I)X=0$?

Swapping two rows changes the sign of the determinant proof using induction

Determinant prove (Faster method to solve it)

Is the determinant of $\lambda I-A$ product of diagonal entries, if for every $\sigma\neq \sigma_0$, $a_{1\sigma(1)}\dots a_{n\sigma(n)}=0,$?

Prove that this $3 \times 3$ determinant vanishes

Linear algebra by Loehr exercise

Determinant of an $n×n$ identity matrix with two arbitrary rows

Prove $|A.B|=|A|.|B|$ using matrix algebra

Suppose $a,b,c \neq 0$. Show that $\det(1+a,1,1),(1,1+b,1),(1,1,1+c) = abc\left(1 + \frac1a + \frac1b + \frac1c\right)$

$\sqrt{\det(A^TA)}$ for transformations into lower dimensions

Fastest way to compute a determinant from a LaTeX matrix input

determinants in matrices

How many sub-square matrices does a square matrix have and is there a simple formula for it?

Cofactor expression with Levi Civita symbol

Finding real values for x that form dependet vectors

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