defence exam ITBP (Telecommunication) Head Constable Mock Test 2024 Mathematics Determinants Evaluation of Determinants
If \({\rm{A}} = \left[ {\begin{array}{*{20}{c}} {\rm{x}}&2\\ 4&{\rm{x }} \end{array}} \right]\) and det (A2) = 64, then x is equal to
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