JEE PYQ: Matrices And Determinants Question 15
Question 15 - 2021 (18 Mar Shift 2)
Let $I$ be an identity matrix of order $2 \times 2$ and $P = \begin{bmatrix} 2 & -1 \ 5 & -3 \end{bmatrix}$. Then the value of $n \in \mathbb{N}$ for which $P^n = 5I - 8P$ is equal to ______.