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Problem
Problem
If
A
A
A
and
B
B
B
are square matrices of order 3 such that
∣
A
∣
=
−
1
|A| = -1
∣
A
∣
=
−
1
,
∣
B
∣
=
3
|B| = 3
∣
B
∣
=
3
, then
∣
B
A
B
∣
|BAB|
∣
B
A
B
∣
is equal to a.
−
9
-9
−
9
b.
−
27
-27
−
27
c.
−
81
-81
−
81
d. 81
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