🛠️ JEE➗ Maths

Let \(A=\left[\begin{array}{cc}\frac{1}{\sqrt{10}} & \frac{3}{\sqrt{10}} \\ \frac{-3}{\sqrt{10}} & \frac{1}{\sqr…

Q1

Let \(A=\left[\begin{array}{cc}\frac{1}{\sqrt{10}} & \frac{3}{\sqrt{10}} \\ \frac{-3}{\sqrt{10}} & \frac{1}{\sqrt{10}}\end{array}\right]\) and \(B=\left[\begin{array}{rr}1 & -i \\ 0 & 1\end{array}\right]\), where \(i=\sqrt{-1}\). If \(M=A^T B A\), then the inverse of the matrix \(A M^{2023} A^T\) is

a

\(
\left[\begin{array}{cc}
1 & -2023 i \\
0 & 1
\end{array}\right]
\)

b

\(
\left[\begin{array}{ll}
1 & 0 \\
-2023 i & 1
\end{array}\right]
\)

c

\(
\left[\begin{array}{ll}
1 & 0 \\
2023 i & 1
\end{array}\right]
\)

d

\(
\left[\begin{array}{cc}
1 & 2023 i \\
0 & 1
\end{array}\right]
\)

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