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Mathematics · 2024

JEE Main · 31 January 2024, Shift 2 · Q22

Let A be a 3 × 3 matrix and det (A)=2. If n= det ( adj ( adj (… ….( adj A))))_2024- times, then the remainder when n is divided by 9 is equal to ____.

Let A be a $\displaystyle 3 \times 3$ matrix and $\displaystyle \operatorname{det}(A)=2$. If $\displaystyle n=\operatorname{det}(\underbrace{\operatorname{adj}(\operatorname{adj}(\ldots \ldots .(\operatorname{adj} A))))}_{2024-\text { times }}$, then the remainder when $\displaystyle n$ is divided by $\displaystyle 9$ is equal to $\displaystyle \_\_\_\_$.
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JEE Main 2024 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.