Questions
If A and B two are 3x3 matrices, then which one of following is not true:
a
(A+B)′=A′+B′
b
(AB)′=A′B′
c
det(AB)=det(A)det(B)
d
A(adjA)=|A|I3
detailed solution
Correct option is B
If A and B are two 3x3 matrices, then(AB)′=B′A′ [Reversal Law]and not (AB)′=A′B′.Talk to our academic expert!
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