Question

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

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

Answer 1

The product is undefined,

Explanation:

Matrices can only be multiplied if they are compatible.

The number of columns in the first matrix must be the same as the number of rows of the second matrix.

Therefore a `2xx3` and a `2xx3` matrix are not compatible.

The product is undefined.