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Let B be a skew symmetric matrix of orde...

Let `B` be a skew symmetric matrix of order `3times3` with real entries. Given `I-B` and `I+B` are non-singular matrices. If `A=(I+B)(I-B)^(-1),` where `det (A)>0` ,then find the value of `det(2A)-det(adj(A))` [Note: `det(P)` denotes determinant of square matrix `P` and `det(adj (P))` denotes determinant of adjoint of square matrix `P` respectively.]

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