The product of two 2x3 matrices A2x3 and B2x3 is?

Question

a 4x9 matrix
undefined
a 4x3 matrix
a 2x3 matrix
a number
a 2x9 matrix

886 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-10-13T10:54:36

undefined

We can only multiply matrices together if the first matrix is #mxxn# and the second is #nxxo# resulting in a #mxxo# matrix.

so neither the product #AB# nor #BA# is defined.