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Determinant of 3x3 matrix

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Determinant of 3x3 matrix diagram
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The determinant of a 3x3 matrix is found by reducing the problem to three 2x2 matrix terms.
a =
b =
c =
d =
e =
f =
g =
h =
i =

Det =
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notes
As well as in mathematics, matrices are used extensively in the sciences and engineering.