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9-54.

Perform each of the following matrix operations without using a calculator. If the operation is impossible, explain why. Homework Help ✎

no calculator icon

  1. Multiplying a matrix by a matrix results in a matrix.

  1. Is it possible to multiply a matrix by a matrix?

  1. Is it possible to add two matrices with different dimensions?

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    See the hint in part (e). Is this a square matrix?