The value of the determinant $\left|\begin{array}{ccc}85 & 15 & 30 \\ 1 & 3 & 4 \\ 17 & 3 & 6\end{array}\right|$ is:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 0
$Δ=\left|\begin{array}{ccc}85 & 15 & 30 \\ 1 & 3 & 4 \\ 17 & 3 & 6\end{array}\right|$
elements of $R_1$ and $R_3$ are proportional
$⇒Δ=0$