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If A and B are two matrices such that A B is of order n , then which one of the following is correct?

Options

  1. AA and B should be square matrices of same order.
  2. BEither A or B should be a square matrix.
  3. CBoth A and B should be of same order.
  4. DOrders of A and B need not be the same.

Correct answer

D. Orders of A and B need not be the same.

Step-by-step solution

Let A is matrix of order n a and B is matrix of order b n . Now, Hence, order of A and B need not to be same.

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