Proof involving matrix equation
44898
Help with commutative property of matrices problem
4517
Showing a $2\times2$ matrix is invertible
94714
How to solve matrix equation $AX+XB=C$ for $X$
94037
Solving the matrix equation $AP=PB$, where $A$ and $B$ are similar
71203
Proving that two systems of linear equations are equivalent if they have the same solutions
110484
Condition on a matrix so that its determinant is $2$
31631
Proof Verification: Joint variance of the product of a random matrix with a random vector
141015
Proof of orthogonal matrix
51800
We have matrix $A\in M_{n-1\times n}(\mathbb Z)$ so that the sum of entries in each row is zero. Prove that $\det(AA^T)=nk^2.$
30882
Proving Invertibility and Eigenvalues
140768
Proof of Vandermonde Matrix Inverse Formula
91684
Prove the following equation(much needed help):
94639
Proof that the rank of a skew-symmetric matrix is at least $2$
145447
bilinear form - proof
31116
Matrix given by $a_{ij} = 1/(i+j)$ is non-singular.
120867
How prove this two symmetric matrices $AB=0$
156438
Find a matrix equation equivalent to $A^TPA+P=I$