Question

observe a matriz M a seguir: 
M= -1  2
      -2  3

a matriz M²= MxM é igual à ??

Answer 1

$\left[\begin{array}{ccc}-2&-1\\3&2\\\end{array}\right]$ x  $\left[\begin{array}{ccc}-2&-1\\3&2\\\end{array}\right]$ = $\left[\begin{array}{ccc}4&1\\9&4\\\end{array}\right]$