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This document discusses matrix operations including addition, subtraction, and multiplication. It defines the 2x2 identity matrix I as ((1, 0), (0, 1)) and provides examples of finding 2A - 5B where A = (2, 1) and B = (-4, 3), and multiplying matrices A = (3, 4) and B = (2, -1). The product of AB is given as (6, 5, 30, 25) and the product of BA is given as (34, 33).

Author

Weteach

Language

EN