0 votes 0 votes Which one of the following matrices has an inverse? $\left[\begin{array}{ccc}1 & 4 & 8 \\ 0 & 4 & 2 \\ 0.5 & 2 & 4\end{array}\right]$ $\left[\begin{array}{lll}1 & 2 & 3 \\ 2 & 4 & 6 \\ 3 & 2 & 9\end{array}\right]$ $\left[\begin{array}{lll}1 & 4 & 8 \\ 0 & 4 & 2 \\ 1 & 2 & 4\end{array}\right]$ $\left[\begin{array}{ccc}1 & 4 & 8 \\ 0 & 4 & 2 \\ 3 & 12 & 24\end{array}\right]$ new gate2024-ee + – Arjun asked Feb 16 • edited Feb 25 by makhdoom ghaya Arjun 15.9k points answer comment Share See all 0 reply Please log in or register to add a comment.
0 votes 0 votes Ans is 3. For inverse, determinant of A should be non-zero.. Inverse of A = adjoint of A / determinant of A Anmolkr1885 answered Mar 23 Anmolkr1885 140 points comment Share ask related question See all 0 reply Please log in or register to add a comment.