0 votes 0 votes The determinant of matrix $A = \begin{pmatrix} 1 & 1& 1 & 1 \\ -1 & 1 & 1 & 1 \\ -1 & -1 & 1 & 1 \\ 1 & 1 & 1 & 3 \end{pmatrix}$ is __________. Linear Algebra gatebt-2021 numerical-answers linear-algebra matrices determinant + – go_editor asked Mar 1, 2021 • recategorized Apr 11, 2021 by Lakshman Bhaiya go_editor 1.4k points answer comment Share Follow See all 0 reply Please log in or register to add a comment.