Let \(M=\begin{pmatrix}\cos\theta&-\sin\theta\\\sin\theta&\cos\theta\end{pmatri…

Let $M=\begin{pmatrix}\cos\theta&-\sin\theta\\\sin\theta&\cos\theta\end{pmatrix}$ be a 2 × 2 matrix, where $\theta=\frac{2\pi}{5}$, and $I_2=\begin{pmatrix}1&0\\0&1\end{pmatrix}$. Which of the following options is equal to 𝑀2026?