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Let A=[{:(0,2y,1),(2x,y,-1),(2x,-y,1):}]...

Let `A=[{:(0,2y,1),(2x,y,-1),(2x,-y,1):}]` then number of possible matrices that `A A=3I_(3)` is

A

2

B

3

C

6

D

4

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A
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