Question

Calcule x,y,z e t sabendo que:

Answer 1

$\left[\begin{array}{ccc}x&1\\1&2\end{array}\right] + \left[\begin{array}{ccc}2&y\\0&-1\end{array}\right] = \left[\begin{array}{ccc}3&2\\z&t\end{array}\right]$

Solução:

x+2 = 3, logo:  x = 3-2 = 1

1+y = 2, logo:  y = 2-1 = 1

0+1 = z, logo:  z = 1-0 = 1

2+(-1) = t, logo:  t = 2-1 = 1.

Espero ter ajudado.