Given is a 2x2 matrix. Deduce a necessary and sufficient condition that this matrix is regular
6324
Deriving the inverse of a 2x2 matrix
117293
sufficient and necessary conditions for matrix to be diagonalize or triangular
139685
If $A^2$ and $B^2$ are similar matrices, do $A$ and $B$ have to be similar?
156302
Find conditions for a surface of rotation to be regular
32103
Show that for a $2\times 2$ matrix $A^2=0$
135316
A basic question on diagonalizability of a matrix
52882
find nonsingular matrices $B$ and $C$ that satisfy $BC+ CB= 0$
35757
A 2x2 matrix $M$ exists. Suppose $M^3=0$ show that (I want proof) $M^2=0$
140415
When does a Square Matrix have an LU Decomposition?
136329
A matrix is similar to its transpose
127127
Prove condition number of a invertible matrix is atleast one
128990
Prove that, at least one of the matrices $A+B$ and $A-B$ has to be singular
20331
Determinant of a $2\times 2$ block matrix
128760
If $A$ and $B$ two $n\times n$ matrix such that $AB=BA$, then $\dim(A\cap B)$?
47589
Product of a primitive matrix and its transpose.
122622
Does there exist a matrix $P$ such that $P^n=M$ for a special matrix $M$?
142315
How does the Axiom of Regularity apply to $A=\{1,2,3\}$?