Question

найдите сумму двух матриц

Answer 1

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