Question: a1 a2 a3 15. (23) Let A = b b2 b3 and B = = C1 4a1b1 4a2+ b2 4a3+b3 C2 C3 C1 C2

a1 a2 a3 15. (23) Let A = b b2 b3 and B = = C1 4a1b1 4a2+ b2 4a3+b3 C2 C3 C1 C2 C3 3b1 3b2 3b3 If det(B) = 6, then (1) det(A) = and (4) rank(A-1) = (2) det(2ABA-) = (3) det(BBT) =

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