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The total number of matrices A = [{:(0,...

The total number of matrices `A = [{:(0, 2y, 1), (2x, y, -1), (2x, -y, ):}] (x, y in R, x ne y) " `
` for which "A^(T)A = 3I_(3)` is

A

2

B

3

C

6

D

4

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The correct Answer is:
D
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