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Home > A2C > Chapter 7 > Lesson 7.3.3 > Problem 7-187

7-187.
  1. Perform each of the following matrix operations without using a calculator. If the operation is Without using a calculator iconimpossible, explain why. Homework Help ✎

What have you learned about matrix operations so far?

What must be true about the dimensions of two matrices in order to multiply them?

Multiply through by the 2 before you add.

What must be true about the dimensions of two matrices in order to add them?