Question

(Fuvest- SP) O valor de
|2 2 3|
|1 4 5| é:
|-1 0 3|​

Answer 1

|2 2 3| 2 2

|1 4 5| 1 4

|-1 0 3| -1 0

2•4•3+2•5•(-1)+3•1•0-3•4•(-1)-2•5•0-2•1•3

24-10+0+12-0-6

24-10+12-6

14+6=20