🛠️ JEE➗ Maths

Let \(\mathrm{A}=\left[\begin{matrix}\alpha & -1 \\ 6 & \beta \end{matrix}\right],\alpha >0\), such that \(\det (A)=0\) …

Q1

Let \(\mathrm{A}=\left[\begin{matrix}\alpha & -1 \\ 6 & \beta \end{matrix}\right],\alpha >0\), such that \(\det (A)=0\) and \(\alpha +\beta =1\). If \(I\) denotes \(2\times 2\) identity matrix, then the matrix \((I+\mathrm{A}{)}^{8}\) is:

[JEE Main 2025, 2 Apr (Shift 1)]

a

\(\left[\begin{matrix}4 & -1 \\ 6 & -1\end{matrix}\right]\)

b

\(\left[\begin{matrix}257 & -64 \\ 514 & -127\end{matrix}\right]\)

c

\(\left[\begin{matrix}1025 & -511 \\ 2024 & -1024\end{matrix}\right]\)

d

\(\left[\begin{matrix}766 & -255 \\ 1530 & -509\end{matrix}\right]\)

🔒
Answer & explanation — PYQ Pass

Options are free to see. Unlock the correct answer and full explanation with Pass.

Unlock · ₹149

Practice more JEE Maths PYQs

See every question on Matrices, or browse the full JEE question bank.

See all questions on Matrices →