Janich Linear Algebra chapter 1 problem 1.2
58642
If $g \circ f$ is the identity function, then which of $f$ and $g$ is onto and which is one-to-one?
97487
How to prove whether a matrix has rank $1$
139496
Linear systems. Please help me solve this
35247
The characteristic and minimal polynomial of a companion matrix
158156
Finding the dual basis for the space of polynomials of degree $\leq$ 2
72551
Proof that $\rho = \pm1$ implies linear combination
152932
Proof: $\det\pmatrix{\langle v_i , v_j \rangle}\neq0$ $\iff \{v_1,\dots,v_n\}~\text{l.i.}$
107435
Exercise from Atiyah-Macdonald, Chapter 1, 2.iv)
34043
A rank-one matrix is the product of two vectors
14111
Determining possible minimal polynomials for a rank one linear operator
31029
Characteristic polynomial of a matrix of $1$'s
103139
Linear optimization problem.
87451
Construction of matrices under ZFC axioms
37060
The Parallelogram Identity for an inner product space
81879
$Av=λv$ basis proof problems
144211
a second course in abstract algebra
118117
Conjugacy Class in a matrix group with columns of standard basis