Practice problem
Find the inverse (A−1A^{-1}A−1) of matrix AAA:
A=[3−46−8]A = \begin{bmatrix} 3 & -4 \\ 6 & -8 \end{bmatrix}A=[36−4−8]
A−1=[−84−63]A^{-1} = \begin{bmatrix} -8 & 4 \\ -6 & 3 \end{bmatrix}A−1=[−8−643]
A−1=[−1814−1613]A^{-1} = \begin{bmatrix} -\frac{1}{8} & \frac{1}{4} \\ -\frac{1}{6} & \frac{1}{3} \end{bmatrix}A−1=[−81−614131]
No Inverse
Type a concept, like “slope” or “photosynthesis”.