Question

Me ajudem!!!!

Dadas as matrizes A=(aij) e B=(bij), quadradas de ordem 2, com aij= 2i²-7j e bij=5i-3j, encontre C=A+B

Answer 1

A= $\left[\begin{array}{ccc}-3&-10\\9&2\\\end{array}\right]$

B = $\left[\begin{array}{ccc}2&-1\\7&4\\\end{array}\right]$

A+B= $\left[\begin{array}{ccc}-3+2&-10+(-1)\\9+7&2+4\\\end{array}\right]$

Logo, C= $\left[\begin{array}{ccc}-1&-11\\16&6\\\end{array}\right]$