Exercise 2.3.9

Answers

We have

M = [\begin{matrix} 1 & 0 & 0 \\ 0 & 0 & 1 \\ - 1 & 1 & 0 \end{matrix}] .

After the exchange, we need $E_{31} ($ not $E_{21})$ to act on the new row 3.

mathchakra

2021-11-20 15:15