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Find the determinant of the following: |3 -3| |-1 2|

Mathematics
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is this one matrices? or two
Just matrix. one
ok. then the determinent is 1/(ad-bc), where a is top left, b is top right, c is bottom left and d is bottom right. that help?

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Other answers:

Not really. Whats the answer?
I got 1/3. is that what you got?
No this is what I got, |dw:1320713982160:dw| And I just looked at my notes and its not matrix I don't think.
Oh, you're right, sorry my mistake :) I was going one step further towards finding the inverse lol your answer's right!
I'm confused because we learned how to do it this way last week but now we're doing Matrix and it looks the same and the direstions don't tell me anything
Thank You! Btw I think it's Called Cramers rule(:
oooh ok thanks :D lol
Cramer's rule is a way to use determinants to solve some systems of equations. if \[A=\left[\begin{matrix}a & b \\ c & d\end{matrix}\right]\] then \[|A|=ad-bc\] always

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