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Math
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Algebra 2
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Matrices, in Depth
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Determinants and Matrix Inverses
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Matrix Determinants
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Computing Determinants of 2×2 or 3×3 Matrices
Practice problem
Computing Determinants of 2×2 or 3×3 Matrices
By
C
Cameron Montag
A
=
[
1
3
−
2
4
2
1
0
−
3
7
]
A = \begin{bmatrix} 1 & 3 & -2 \\ 4 & 2 & 1 \\ 0 & -3 & 7 \end{bmatrix}
A
=
1
4
0
3
2
−
3
−
2
1
7
What is
det
(
A
)
\det(A)
det
(
A
)
?
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