26 Answered Questions

[SOLVED] If $AB = I$ then $BA = I$

13 Answered Questions

[SOLVED] What's an intuitive way to think about the determinant?

1 Answered Questions

[SOLVED] Kernels and reduced row echelon form - explanation

10 Answered Questions

[SOLVED] Inverse of the sum of matrices

5 Answered Questions

[SOLVED] Similar matrices and field extensions

5 Answered Questions

4 Answered Questions

1 Answered Questions

[SOLVED] Simultaneously Diagonalizable Proof

9 Answered Questions

[SOLVED] How to show that $\det(AB) =\det(A) \det(B)$?

3 Answered Questions

3 Answered Questions

[SOLVED] The Center of $\operatorname{GL}(n,k)$

20 Answered Questions

[SOLVED] Calculate Rotation Matrix to align Vector A to Vector B in 3d?

4 Answered Questions

[SOLVED] Sylvester's determinant identity

6 Answered Questions

[SOLVED] Determinant of a block lower triangular matrix

2 Answered Questions

9 Answered Questions

[SOLVED] When is matrix multiplication commutative?

8 Answered Questions

5 Answered Questions

2 Answered Questions

14 Answered Questions

[SOLVED] Intuition behind Matrix Multiplication

6 Answered Questions

[SOLVED] $AB-BA=I$ having no solutions

3 Answered Questions

6 Answered Questions

[SOLVED] why determinant is volume of parallelepiped in any dimensions

4 Answered Questions

[SOLVED] Prove that $A+I$ is invertible if $A$ is nilpotent