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Matrices and Determinants question

2024 · 8 Apr · Shift 1 · Q58
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Matrices and Determinants question

2024 · 8 Apr · Shift 1 · Q58

JEE MainMathematicsMatrices and DeterminantsNumerical+4 / −1
Let A=[2−111]A=\left[\begin{array}{cc}2 & -1 \\ 1 & 1\end{array}\right]A=[21​−11​]. If the sum of the diagonal elements of A13A^{13}A13 is 3n3^n3n, then nnn is equal to ‾\underline{\hspace{2cm}}​.
Numerical answer
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