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10 cards from this deck
Inverse matrix
Determinant is non-zero
Singular matrix
A−1A^{-1}A−1
1det(A)(d−b−ca)\frac{1}{\text{det}(A)}\begin{pmatrix} d & -b \\ -c & a \end{pmatrix}det(A)1(d−c−ba)
Identity matrix
B−1A−1B^{-1}A^{-1}B−1A−1 (order reversed)
Square matrices only
X=A−1BX = A^{-1}BX=A−1B
Adjugate matrix
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