Question

1. Give an example of a linear system of two equations with two unknowns. Also give...

1. Give an example of a linear system of two equations with two unknowns. Also give an example of a linear system of three equations with three unknowns.

2. What are the two properties that define an echelon matrix? What are the additional two properties needed to define a reduced echelon matrix? Give an example of a reduced echelon matrix, and give an example of an echelon matrix that is not reduced.

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The solution provided is self explanatory.

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