If the matrix is of 2 by 2 then we can find the determinant of the matrix.

Then (ad - bc ) gives you the determinant of the matrix.
For example,

= (2)(-2) - (1)(4)
= - 4 - 4
= -8
Answer:
58.678
Step-by-step explanation:
Just make the answer reach 3 numbers after the decimal point.
Answer:
5545
Step-by-step explanation: