Practice problem
Find the inverse (A−1A^{-1}A−1) for matrix AAA:
A=[0187]A = \begin{bmatrix} 0 & 1 \\ 8 & 7 \end{bmatrix}A=[0817]
A−1=[7−1−80]A^{-1} = \begin{bmatrix} 7& -1 \\ -8 & 0 \end{bmatrix}A−1=[7−8−10]
A−1=[18−7801]A^{-1} = \begin{bmatrix} \frac{1}{8} & -\frac{7}{8} \\ 0 & 1 \end{bmatrix}A−1=[810−871]
A−1=[78−18−10]A^{-1} = \begin{bmatrix} \frac{7}{8} & -\frac{1}{8} \\ -1 & 0 \end{bmatrix}A−1=[87−1−810]
A−1=[−781810]A^{-1} = \begin{bmatrix} -\frac{7}{8} & \frac{1}{8} \\ 1 & 0 \end{bmatrix}A−1=[−871810]
No Inverse
Type a concept, like “slope” or “photosynthesis”.