Suppose the matrix product AB is de ned.

Question

(a) If A is 17 * 34 and B is a column matrix, give the dimensions of B and AB.

(b) Suppose A + A^T is defined and AB is a 43 * 55 matrix. What is the size of matrix A?

(c) If A is 13 * 16 and AB is 13 * 71, what size is matrix B?

Answer 1