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Mathematics

The product AB of two matrices A and B is possible if

  1. A and B have same number of rows.

  2. A and B have same number of columns.

  3. The number of columns of A is equal to the number of rows of B.

  4. The number of rows of A is equal to the number of columns of B.

Matrices

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Answer

Matrix multiplication is possible if the number of columns of the first matrix is the same as the number of rows as the second matrix.

So, AB is possible if the number of columns of A is equal to the number of rows of B.

Hence, option 3 is the correct option.

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