Question

How do I find such matrices $X_{1},\ldots,X_{9} \in \mathrm{M}_{2}(\mathbb{Z}) $?

score 44 · Answer 1 · 2026-04-14 05:50:44

44

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How do I find such matrices $X_{1},\ldots,X_{9} \in \mathrm{M}_{2}(\mathbb{Z}) $?

Published on 14 Apr 2026 - 5:50

score 110 · Answer 2 · 2026-04-13 07:29:37

110

Views

Linear Algebra - Determinant Properties

Published on 13 Apr 2026 - 7:29

score 941 · Answer 3 · 2026-04-14 04:10:20

941

Views

Determinant of an Operator with No Eigenvalues

Published on 14 Apr 2026 - 4:10

score 695 · Answer 4 · 2026-04-14 19:44:03

695

Views

determinant of infinitely large matrix by decomposition

Published on 14 Apr 2026 - 19:44

score 3.7k · Answer 5 · 2026-04-13 23:48:17

3.7k

Views

Determinant of matrix with trigonometric functions

Published on 13 Apr 2026 - 23:48

score 307 · Answer 6 · 2026-04-14 15:03:21

307

Views

Show that a matrix has positive determinant

Published on 14 Apr 2026 - 15:03

score 845 · Answer 7 · 2026-04-12 21:46:51

845

Views

Show determinant of $\left[\begin{matrix} A & 0 \\ C & D\end{matrix}\right] = \det{A}\cdot \det{D}$

Published on 12 Apr 2026 - 21:46

score 170 · Answer 8 · 2026-04-13 16:28:52

170

Views

Determinants using elementary row operations

Published on 13 Apr 2026 - 16:28

score 6.5k · Answer 9 · 2026-04-10 13:26:58

6.5k

Views

Proof that determinant is continuous using $\epsilon-\delta $ definition

Published on 10 Apr 2026 - 13:26

score 19.8k · Answer 10 · 2026-04-15 18:29:50

19.8k

Views

Show that $A$ and $A^T$ do not have the same eigenvectors in general

Published on 15 Apr 2026 - 18:29

score 40 · Answer 11 · 2026-04-13 22:37:36

40

Views

Computing determinant of the matrix $C$

Published on 13 Apr 2026 - 22:37

score 90 · Answer 12 · 2026-04-17 04:24:11

90

Views

Order $n^2$ different reals, such that they form a $\mathbb{R^n}$ basis

Published on 17 Apr 2026 - 4:24

score 5.5k · Answer 13 · 2026-04-12 22:16:58

5.5k

Views

If $(I-A)(I+A)^{-1}$ is orthogonal then prove that A is skew symmetric.

Published on 12 Apr 2026 - 22:16

score 30 · Answer 14 · 2026-04-11 17:49:48

30

Views

Why does this equality stand?

Published on 11 Apr 2026 - 17:49

score 211 · Answer 15 · 2026-04-16 16:01:39

211

Views

Find the determinant of a matrix with entries $\frac1{a_i+b_j}$

Published on 16 Apr 2026 - 16:01

List Question

How do I find such matrices $X_{1},\ldots,X_{9} \in \mathrm{M}_{2}(\mathbb{Z}) $?

Linear Algebra - Determinant Properties

Determinant of an Operator with No Eigenvalues

determinant of infinitely large matrix by decomposition

Determinant of matrix with trigonometric functions

Show that a matrix has positive determinant

Show determinant of $\left[\begin{matrix} A & 0 \\ C & D\end{matrix}\right] = \det{A}\cdot \det{D}$

Determinants using elementary row operations

Proof that determinant is continuous using $\epsilon-\delta $ definition

Show that $A$ and $A^T$ do not have the same eigenvectors in general

Computing determinant of the matrix $C$

Order $n^2$ different reals, such that they form a $\mathbb{R^n}$ basis

If $(I-A)(I+A)^{-1}$ is orthogonal then prove that A is skew symmetric.

Why does this equality stand?

Find the determinant of a matrix with entries $\frac1{a_i+b_j}$

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