Question: 1. Describe the possible echelon forms of a nonzero 2 x 2 matrix. Use the symbols , *, and 0, as in the first part

1. Describe the possible echelon forms of a nonzero 2 x 2 matrix. Use the symbols ■, *, and 0, as in the first part of Example 1.
2. Repeat Exercise 5 for a nonzero 3 x 2 matrix.

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