Question

найдите сумму двух матриц

Answer 1

$\left[\begin{array}{ccc}-1&2&3\\4&1&1\\5&2&1\end{array}\right]$+$\left[\begin{array}{ccc}0&2&4\\2&3&1\\3&2&2\end{array}\right]$=$\left[\begin{array}{ccc}-1+0&2+2&3+4\\4+2&1+3&1+1\\5+2&2+2&1+2\end{array}\right]$=$\left[\begin{array}{ccc}-1&4&7\\6&4&2\\8&4&3\end{array}\right]$