Question

me ajudem urgente por favor​

Answer 1

a) A + B

$\left[\begin{array}{ccc}4&0\\1&8\\\end{array}\right]$ + $\left[\begin{array}{ccc}3&1\\7&9\\\end{array}\right]$ = $\left[\begin{array}{ccc}7&1\\8&17\\\end{array}\right]$

b) B - A

$\left[\begin{array}{ccc}3&1\\7&9\\\end{array}\right]$ - $\left[\begin{array}{ccc}4&0\\1&8\\\end{array}\right]$ = $\left[\begin{array}{ccc}-1&1\\6&1\\\end{array}\right]$

c) 4 . A

4. $\left[\begin{array}{ccc}4&0\\1&8\\\end{array}\right]$ = $\left[\begin{array}{ccc}16&0\\4&32\\\end{array}\right]$