Question
Find $\left(A^{-1}\right)^{-1}$ for each of the following matrices.(A) $A=\left[\begin{array}{ll}4 & 2 \\ 1 & 3\end{array}\right]$(B) $A=\left[\begin{array}{rr}5 & 5 \\ -1 & 3\end{array}\right]$
Step 1
This is because the inverse of a matrix is the matrix that, when multiplied with the original matrix, gives the identity matrix. So, if we take the inverse of the inverse, we are essentially undoing the operation of finding the inverse, and we get back the Show more…
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