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Matrices and Determinants question

2021 · 16 Mar · Shift 1 · Q43
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Matrices and Determinants question

2021 · 16 Mar · Shift 1 · Q43

JEE MainMathematicsMatrices and DeterminantsNumerical+4 / −1
The total number of 3 ×\times× 3 matrices A having entries from the set {0, 1, 2, 3} such that the sum of all the diagonal entries of AAT is 9, is equal to ‾\underline{\hspace{2cm}}​.
Numerical answer
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