Given that the value of a determinant of order three is zero; which one of the following is not correct?
Answer & explanation
Correct answer: option 3
In part 3
Let say we have a matrix with non zero diagonal elements and all other zero elements
in this case
e.g. A3×3 = $\left[\begin{array}{lll}a & 0 & 0 \\ 0 & b & 0 \\ 0 & 0 & c\end{array}\right]$
then |A| = abc ≠ 0
so option 3