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Let the matrix A and B be defined as A=[...

Let the matrix `A` and `B` be defined as `A=[[3 , 2], [ 2 , 1]]` and `B=[[3, 1],[ 7, 3]]` then the absolute value of det. `(2 A^9 B^-1)` is

A

1

B

2

C

-2

D

4

Text Solution

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The correct Answer is:
C
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