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OpenStudy (anonymous):
Algebra 2 matrices!
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OpenStudy (anonymous):
OpenStudy (kainui):
\[\left[\begin{matrix}a & b\\ c & d\end{matrix}\right]\] the determinant of a 2x2 matrix is just the diagonal from a to d multiplied together minus the diagonal of b to c multiplied together. So the determinant of this matrix = ad-bc
OpenStudy (anonymous):
help with this one too?
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