Question

Considerando as matrizes A e B abaixo, qual o qual o elemento c22 da matriz C resultante da subtração A – B? *

Answer 1

Explicação passo-a-passo:

Temos as seguintes matrizes:

$A=\left[\begin{array}{ccc}3&-1\\0&5\\\end{array}\right]$

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

Calculando a matriz C:

$C=A-B\\\\C=\left[\begin{array}{ccc}3&-1\\0&5\\\end{array}\right] -\left[\begin{array}{ccc}3&2\\-1&4\\\end{array}\right] \\\\C=\left[\begin{array}{ccc}3-3&-1-2\\0-(-1)&5-4\\\end{array}\right] \\\\C=\left[\begin{array}{ccc}0&-3\\1&1\\\end{array}\right]$

Logo:

$\boxed{\boxed{c_{22}=1}}$