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If A=[(sqrt2,1),(-1,sqrt2)],B=[(1,0),(0,...

If `A=[(sqrt2,1),(-1,sqrt2)],B=[(1,0),(0,1)], C=ABA^T,X=A^TC^2A` then det (x) is equal to

A

243

B

729

C

27

D

891

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The correct Answer is:
B
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