Question

Calcule:





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Answer 1

Explicação passo-a-passo:

a) $\left[\begin{array}{c} 8 \\ 7 \\ 2 \end{array}\right]-\left[\begin{array}{c}3 \\ 6 \\ 3 \end{array}\right]=\left[\begin{array}{c} 8 - 3 \\ 7 - 6 \\ 2 - 3 \end{array}\right]=\left[\begin{array}{c} 5 \\ 1 \\ -1 \end{array}\right]$

b)

$\left(\begin{array}{cc} 2 & 3 \\ 1 & 4 \end{array}\right)-\left(\begin{array}{cc} 0 & 2 \\ 1 & 5 \end{array}\right)=\left(\begin{array}{cc} 2-0 & 3-2 \\ 1 - 1 & 4 - 5 \end{array}\right)=\left(\begin{array}{cc} 2 & 1 \\ 0 & -1 \end{array}\right)$

c)

$\left(\begin{array}{ccc} 1 & 2 & 4 \\ 6 & 3 & 10 \end{array}\right)-\left(\begin{array}{ccc} 0 & 1 & 2 \\ 6 & 5 & 1 \end{array}\right)=\left(\begin{array}{ccc} 1-0 & 2-1 & 4-2 \\ 6-6 & 3-5 & 10-1 \end{array}\right)=\left(\begin{array}{ccc} 1 & 1 & 2 \\ 0 & -2 & 9 \end{array}\right)$