Engineering Board Exam Reviewer · Matrix Operations · easy

If A is a 2×3 matrix and B is a 3×2 matrix, what are the dimensions of the product AB?

  1. 2×2
  2. 3×3
  3. 2×3
  4. 3×2

Answer

A. 2×2

Solution

The product of an m× n matrix and an n× p matrix is m× p: here, 2×2.

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