Exercise 2.5.30

Answers

Elimination produces the pivots $a$ and $a - b$ and $a - b$ .

A^{- 1} = \frac{1}{a (a - b)} [\begin{matrix} a & - b \\ - a & a & 0 \\ 0 & - a & a \end{matrix}] .

The matrix $C$ is not invertible if $c = 0$ or $c = 7$ or $c = 2$ .

mathchakra

2021-12-19 17:38