📐 Mathematics · Matrices · JEE

For the product AB to be defined, the number of columns of A must equal the number of ___ of B:

Answer: rows.

Correct answer: A. rows

Explanation: Matrix multiplication AB needs columns of A to match rows of B.

Element aij of matrix A sits at the intersection of row i and column j.

Concept context

Matrix operations, determinants, inverses, and solving linear systems