Anki Deck Changes

Note 1: ETH::LinAlg

Deck: ETH::LinAlg
Note Type: Horvath Classic
GUID: Ie1sVs`1ap

added

Note did not exist

Give me the determinant of \(A = \begin{bmatrix} a & b \\ c & d \end{bmatrix}\):

Give me the determinant of \(A = \begin{bmatrix} a & b \\ c & d \end{bmatrix}\):

\[A^{-1} = \frac{1}{ad - bc} \begin{bmatrix} d & -c \\ -b & a \end{bmatrix}\]

Field-by-field Comparison

Field	Before	After
Front		Give me the determinant of \(A = \begin{bmatrix} a & b \\ c & d \end{bmatrix}\):
Back		\[A^{-1} = \frac{1}{ad - bc} \begin{bmatrix} d & -c \\ -b & a \end{bmatrix}\]

Tags: ETH::1._Semester::LinAlg::7._The_determinant::1._2x2_Matrices