Question

If matrix A is 3 x 4 and matrix B is 4 x 6, the dimensions of matrix product AB are _____.

Answer 1

hint:

if A is a m x n matrix
if B is an n x p matrix

then A*B = C is a m x p matrix

Answer 2

(3X4) (4X6), the inner numbers are the same, cross them out, you have (3x6)