Q. 104.0( 123 Votes )

The number of all A. 27

B. 18

C. 81

D. 512

Answer :

The given matrix of the order 3 × 3 has 9 elements with each entry 0 or 1.

Now, each of the 9 elements can be filled in two possible ways.


Hence, the required number of possible matrices is 29 = 512.

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