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Determinantshard
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Let AAA and BBB be 3×33 \times 33×3 matrices with det⁡(A)=2\det(A) = 2det(A)=2 and det⁡(B)=−4\det(B) = -4det(B)=−4. Find det⁡(2A−1B2)\det(2A^{-1}B^2)det(2A−1B2).