Exercise 2

Which of these matrices are row equivalent to each other?

• (a)  $\begin{pmatrix}1&3\\ 2&4\end{pmatrix}$     (b)  $\begin{pmatrix}1&5\\ 2&10\end{pmatrix}$     (c)  $\begin{pmatrix}1&-1\\ 3&0\end{pmatrix}$     (d)  $\begin{pmatrix}2&6\\ 4&10\end{pmatrix}$     (e)  $\begin{pmatrix}0&1\\ -1&0\end{pmatrix}$     (f)  $\begin{pmatrix}3&3\\ 2&2\end{pmatrix}$