If tr(A)=3\text{tr}(A) = 3tr(A)=3 and det(A)=2\det(A) = 2det(A)=2 for a 2×22 \times 22×2 matrix, what is tr(A−1)\text{tr}(A^{-1})tr(A−1)?
3/23/23/2
2/32/32/3
1/21/21/2
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