Find Basis of $\mathrm{Col}(A) \cap \mathrm{Row}(A)$
18913
How to find a basis for the intersection of two vector spaces in $\mathbb{R}^n$?
16749
Let $A_i= \left \{...,-2,-1,0,1,...,i \right\}$. Find $\bigcup_{i=1}^{n} A_i$ and $\bigcap_{i=1}^{n} A_i$
64517
Prove that row rank of a matrix equals column rank
21366
Help on the relationship of a basis and a dual basis
147888
Show that $M=\bigcap_{\mathfrak{p}\in\operatorname{Spec}(R)}M_\mathfrak{p}=\bigcap_{\mathfrak{m}\in\text{Max}(R)}M_\mathfrak{m}$ for certain $M$.
40345
How to typeset row operations on augmented matrix
107122
Compute $ad_X$, $ad_Y$, and $ad_Z$ relative to a basis
134402
$\mathrm{rank}(A)+\mathrm{rank}(I-A)=n$ for $A$ idempotent matrix
93550
How to find the matrix representation of an operator from its action on a basis?
78648
Find an orthonormal basis for the subspace of $\mathbb R^4$
75009
$A = \bigcap_{\mathfrak{p} \in \text{Spec(A)}} A_{\mathfrak{p}} = \bigcap_{\mathfrak{m} \in \text{MaxSpec(A)}} A_{\mathfrak{m}}$
33524
Prove the following $A \setminus (B\setminus C) = (A\setminus B)\cap (A \cup C)$
8554
Proof: $\mathrm{adj}(\mathrm{adj}(A)) = (\mathrm{det}(A))^{n-2} \cdot A$ for $A \in \mathbb{R}^{n\times n}$
84871
Determining the dimension of span$\{AB-BA : A,B \in M_{n \times n}(\mathbb R) \}$
10477
Finding the closure of A=$\mathbb Q \cap [0,1]$.
68552
Find the representing matrix with the respect to the standard basis
148101
Basis for $\mathbb{Z}^2$