Find $| A |$ ​ $A = \left[ \begin{array} { c c } - 4 & 0 \\0 & 6\end{array} \right]$

Q20: Find the determinant of the matrix

Q21: Evaluate the determinant <span class="ql-formula"

Q22: Find the determinant of <span

Q23: Find all minors of the matrix

Q24: Use the matrix capabilities of a

Q26: Given <span class="ql-formula" data-value="A =

Q27: Find the determinant of <span

Q28: Find all the cofactors of the

Q29: Find <span class="ql-formula" data-value="| A

Q30: Find all cofactors of the matrix