its the first one because for example [-12] and 4
the absolute value of -12 is 12 so its greater
Answer:
if you can use the app photomath or m.a.t.h. w.a.y
Step-by-step explanation:
The coefficient matrix is build with its rows representing each equation, and its columns representing each variable.
So, you may write the matrix as
which means
The determinant is computed subtracting diagonals:
So, we have
4-3=1
1+8=9
The answer is 9