How to find the rank of the given matrix
123151
Find the rank of matrix.
130799
Matrix of rank 1; show that $A^2=cA$ for some scalar $c$.
64517
Prove that row rank of a matrix equals column rank
116509
How can I count the number of elements of a given value in a matrix?
122853
Show that $\operatorname{rank}(A) = \operatorname{rank}(B)$
97040
Question about an application of the Rank-Nullity theorem
70528
Rank of a Matrix Sum
121800
Find the determinant of $N \times N$ matrix
37162
Prove that matrices have equal rank.
10483
Prove Sylvester rank inequality: $\text{rank}(AB)\ge\text{rank}(A)+\text{rank}(B)-n$
121157
Proof verification: column rank = row rank
77192
How to prove $\text{Rank}(AB)\leq \min(\text{Rank}(A), \text{Rank}(B))$?
2548
Finding determinant of matrix without expanding
5058
Eigenvalues of the rank one matrix $uv^T$
34043
A rank-one matrix is the product of two vectors
58021
Finding matrix $B$ is not zero matrix where $AB= 0$
65783
Proving: "The trace of an idempotent matrix equals the rank of the matrix"