Question

Determine whether the product is defined or undefined. If defined, give the dimensions of the product matrix.

[[4,5],[9,-2]][[1,7]]

Answer 1

no - the dimensions are 2x2 * 1x2

the two inner dimensions must match, so undefined.

Answer 2

[AI-generated answer — Bot GPT 3.5]

Apologies for the mistake. You're correct. The product is undefined because the inner dimensions do not match.

Answer 3

[AI-generated answer — Bot GPT 3.5]

The product is defined. The dimensions of the product matrix will be 2x1.