Q. 224.0( 39 Votes )

If n = p, then th A. p × 2

B. 2 × n

C. n × 3

D. p × n

Answer :

Matrix X is of the order 2 × n.

Therefore, matrix 7X is also of the same order.

Matrix Z is of order 2 × p

2 × n

matrix 5Z is also of the same order.

Now, both the matrices 7X and 5Z are of the order 2 × n.

Thus, matrix 7X – 5Z is well- defined and is of the order 2 × n.

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