Question

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Answer 1

Explicação passo-a-passo:

a)

$A=\left[\begin{array}{ccc}1&0\\-5&6\\2&4\end{array}\right] +\left[\begin{array}{ccc}3&-1\\2&5\\0&1\end{array}\right] \\\\A=\left[\begin{array}{ccc}1+3&0-1\\-5+2&6+5\\2+0&4+1\end{array}\right] \\\\A=\left[\begin{array}{ccc}4&-1\\-3&11\\2&5\end{array}\right]$

b)

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

c)

$A=\left[\begin{array}{ccc}2\\3\end{array}\right] .\left[\begin{array}{ccc}1&2&0\end{array}\right] \\\\A=\left[\begin{array}{ccc}2.1&2.2&2.0\\3.1&3.2&3.0\end{array}\right] \\\\A=\left[\begin{array}{ccc}2&4&0\\3&6&0\end{array}\right]$