Matrix is of order and matrix is of order

MATHEMATICS · Single correct · AP · AP Precalculus · Functions with Parameters, Vectors, and Matrices · Functions with Parameters, Vectors, and Matrices

Problem

Matrix AA is of order 4×34\times3 and matrix BB is of order 3×13\times1. What is the order of the product ABAB? (a) 3×43\times4 (b) 4×14\times1 (c) 1×31\times3 (d) Product not defined

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