Adjugate Matrix/Examples/2 x 2
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Example of Adjugate Matrix
Let $\mathbf A$ be the square matrix of order $2$:
- $\mathbf A = \begin {pmatrix} a & b \\ c & d \end {pmatrix}$
Then the adjugate matrix of $\mathbf A$ is:
- $\adj {\mathbf A} = \begin {pmatrix} d & -b \\ -c & a \end {pmatrix}$
Sources
- 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): adjoint