Let A be an n × n matrix such that |A| = 2. If the determinant of… | JEE Main 2023 Mathematics PYQ

NVAMediumJEE Main 2023 · 31 January, Shift 2Determinants Basics

Let $A$ be an $n \times n$ matrix such that $|A| = 2$ . If the determinant of the matrix $\text{Adj}(2 \cdot \text{Adj}(2A^{-1}))$ is $2^{84}$ , then $n$ is equal to:

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