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If A and B are square matrices of order ...

If A and B are square matrices of order 3 , such that `|A| =-1 , |B | = 3 ` , then thee determinant of 3 AB equals :

A

`-9`

B

`-27`

C

`-81`

D

81

Text Solution

Verified by Experts

The correct Answer is:
C
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