Question

If A has dimension 2 X 3 and B has 3 X 2 then one dimension of AB is

Answer 1

here the 3and 3 will be cancel and 2×2 becomes the dimension of AB

Answer 2

A matrix can be multiplied by Another matrix if the left hand side or origin matrix has the same number of columns as the right hand side matrix has rows, in this case the product A B can be done.