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Let P be the set of all non-singular mat...

Let P be the set of all non-singular matrices of order 3 over ú and Q be the set of all orthogonal matrices of order 3 over ú. Then,

A

P is proper subset of Q

B

Q is proper subset of P

C

Neither P is proper subset of Q nor Q is proper subset of P

D

`P cup Q =phi` the void set

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The correct Answer is:
C
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