Question

Dadas as matrizes A= ...

Answer 1

$A= \left[\begin{array}{ccc}4&-1\\2&0\\\end{array}\right]$   -   $B= \left[\begin{array}{ccc}2&0\\3&-1\\\end{array}\right]$

A) B-a: $\left[\begin{array}{ccc}2&-1\\1&1\\\end{array}\right]$

B) a - (b + matriz identidade)

b+i: $\left[\begin{array}{ccc}2&0\\3&-1\\\end{array}\right] + \left[\begin{array}{ccc}1&0\\0&1\\\end{array}\right] = \left[\begin{array}{ccc}3&0\\3&0\\\end{array}\right]$

bi - a: $\left[\begin{array}{ccc}3&0\\3&0\\\end{array}\right] - \left[\begin{array}{ccc}4&-1\\2&0\\\end{array}\right] = \left[\begin{array}{ccc}1&1\\1&0\\\end{array}\right]$