Question

ind the value of -6 -3 -5
5 7 -6
3 9 9

Answer 1

determinant of this matrix?

Answer 2

-6

Answer 3

can you post a screenshot of the full thing?

Answer 4

I can't im sorry

Answer 5

I'm confused what the full question is exactly

Answer 6

finding the value

Answer 7

it's only missing the brackets

Answer 8

ok so this?

\[\Large \left|\begin{array}{ccc}
-6 & -3 & -5\\
5 & 7 & -6\\
3 & 9 & 9\\
\end{array}\right|\]

Answer 9

yes

Answer 10

ok so this is a determinant

Answer 11

have you learned that term?

Answer 12

I don't think i have

Answer 13

ok here is one method to do a determinant of a 3x3 matrix

Answer 14

step 1) focus on the first two columns (circled)

Answer 15

copy those columns to the right of the matrix bar



keep the order the same