🛠️ JEE➗ Maths

Let \(A=\left[\begin{matrix}1 & 0 & 0 \\ 3 & 1 & 0 \\ 9 & 3 & 1\end{matrix}\right]\) and \(B=\left[{b}_{ij}\right],1\leq…

Q1

Let \(A=\left[\begin{matrix}1 & 0 & 0 \\ 3 & 1 & 0 \\ 9 & 3 & 1\end{matrix}\right]\) and \(B=\left[{b}_{ij}\right],1\leq i,j\leq 3\). If \(B={A}^{99}-I\), then the value of \(\frac{b_{31}-b_{21}}{b_{32}}\) is:

[JEE Main 2026, 6 Apr (Shift 2)]

a

\(99\)

b

\(199\)

c

\(149\)

d

\(159\)

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