0 0 votes If $A=\left(\begin{array}{ll}1 & 2 \\ 3 & 5\end{array}\right)$, the value of $\left|A^{4}+3 A^{2}-5 A+6 I\right|$ is _____________. Linear Algebra gatebt-2023 linear-algebra matrix numerical-answers + – admin 3.0k points answer comment Share Follow 0 reply Please log in or register to add a comment.