Answer :

Answer:

1- 9

2- 0

3- 17

4- -4

5- 0

6- 2

hope this is right i tried my best . i solved them in my own in worksheet

THE FIRST 1,2,3 IS THE ONE ON YOUR LEFT HAND AND THE 4,5,6 IS ON YOU RIGHT HAND!!!!

sqdancefan

Answer:

  see below

Step-by-step explanation:

The formula for the determinant of a 2×2 matrix is pretty simple. You can do all of these in your head. Of course, multiplying two negatives gives a positive result.

  [tex]det\left[\begin{array}{cc}a&b\\c&d\end{array}\right] =ad-cb[/tex]

You will notice that the determinant is zero when two rows are the same. You will also notice that the determinant of a diagonal matrix is the product of the diagonal elements.

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