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Matrices and Determinants question

2023 · 11 Apr · Shift 1 · Q41
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Matrices and Determinants question

2023 · 11 Apr · Shift 1 · Q41

JEE MainMathematicsMatrices and DeterminantsNumerical+4 / −1
Let A=[012a031c0]A=\left[\begin{array}{lll}0 & 1 & 2 \\ a & 0 & 3 \\ 1 & c & 0\end{array}\right]A=​0a1​10c​230​​, where a,c∈Ra, c \in \mathbb{R}a,c∈R. If A3=AA^{3}=AA3=A and the positive value of aaa belongs to the interval (n−1,n](n-1, n](n−1,n], where n∈Nn \in \mathbb{N}n∈N, then nnn is equal to ‾\underline{\hspace{2cm}}​.
Numerical answer
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