🛠️ JEE➗ Maths

If the matrices \( A=\left[\begin{array}{ccc}1 & 1 & 2 \\ 1 & 3 & 4 \\ 1 & -1 & 3\end{array}\rig…

Q1

If the matrices \( A=\left[\begin{array}{ccc}1 & 1 & 2 \\ 1 & 3 & 4 \\ 1 & -1 & 3\end{array}\right], B=\operatorname{adj} A \) and \( C=3 A \), then \( \frac{|\operatorname{adj} B|}{|C|} \) is equal to

[JEE Main 2020, 9 Jan (Shift 1)]

a

\(72\)

b

\(8\)

c

\(16\)

d

\(2\)

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