Question

Решите матрицу плиз...

Answer 1

$\left[\begin{array}{ccc}5&2&3\\4&-1&0\\8&-2&6\end{array}\right]$=
=5*(-1)*6+2*0*8+3*4*(-2)-3*(-1)*8-2*6*4-5*0*(-2)=-30-24+24-48=-30-48=-78