List questions from determinant

Published on 09 Sep 2016 - 9:23

268

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proof that an isometric orthogonal mirroring on R2 has a determinant of -1

Published on 26 Mar 2026 - 21:27

2.6k

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Is there a proof that a matrix is invertible iff its determinant is non-zero which doesn't presuppose the formula for the determinant?

Published on 09 Sep 2016 - 18:24

129

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Invertible = nonzero det?

Published on 02 Apr 2026 - 12:55

417

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Calculating the determinant - error

Published on 12 Sep 2016 - 17:54

89

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find value of determinant

Published on 12 Sep 2016 - 19:37

134

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Show $\det (A) \det(B)=\det(matrix)$

Published on 13 Sep 2016 - 16:06

1.2k

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Matrix equation for two perpendicular lines intersecting at an end point

Published on 06 Apr 2026 - 14:35

376

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How do I prove that the determinant map is a ring homomorphism

Published on 26 Mar 2026 - 1:28

536

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Set of linear equations with 3 unknown with Delta = DeltaX = DeltaY = 0, Prove DeltaZ = 0

Published on 18 Sep 2016 - 6:48

105

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Proving a determinant equality

Published on 18 Sep 2016 - 8:31

1k

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Is there a quick way to find the remainder when this determinant is divided by $5$?

Published on 27 Mar 2026 - 3:42

81

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A counterexample when $\text{char}(\mathbb{F})=2$

Published on 18 Sep 2016 - 17:15

3.9k

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Does the same determinant make two matrices equal to each other?

Published on 19 Sep 2016 - 3:59

477

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Determinant of a symmetric $7\times 7$-matrix

Published on 29 Mar 2026 - 15:35

List Question

What's the determinant of matrix B using the determinant of matrix A

proof that an isometric orthogonal mirroring on R2 has a determinant of -1

Is there a proof that a matrix is invertible iff its determinant is non-zero which doesn't presuppose the formula for the determinant?

Invertible = nonzero det?

Calculating the determinant - error

find value of determinant

Show $\det (A) \det(B)=\det(matrix)$

Matrix equation for two perpendicular lines intersecting at an end point

How do I prove that the determinant map is a ring homomorphism

Set of linear equations with 3 unknown with Delta = DeltaX = DeltaY = 0, Prove DeltaZ = 0

Proving a determinant equality

Is there a quick way to find the remainder when this determinant is divided by $5$?

A counterexample when $\text{char}(\mathbb{F})=2$

Does the same determinant make two matrices equal to each other?

Determinant of a symmetric $7\times 7$-matrix

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