Question

determine (A - B). (por favor ajudem , urgente!!!)​

Answer 1

Explicação passo-a-passo:

Subtraia cada elemento correspondente das duas matrizes

    $A-B=\left[\begin{array}{ccc}2&3\\4&-1\\0&2\end{array}\right]-\left[\begin{array}{ccc}-2&0\\7&-1\\8&5\end{array}\right]$

    $A-B=\left[\begin{array}{ccc}2-(-2)&3-0\\4-7&-1-(-1)\\0-8&2-5\end{array}\right]$

    $A-B=\left[\begin{array}{ccc}2+2&3-0\\4-7&-1+1\\0-8&2-5\end{array}\right]$

    $A-B=\left[\begin{array}{ccc}4&3\\-3&0\\-8&-3\end{array}\right]$