1-4 ■ Determine whether the matrix is in reduced row-echelon form, row echelon form, or neither.
Whether the matrix is in reduced row-echelon form, row echelon form, or neither
The definitions of reduced row-echelon form and row echelon form
1. The first nonzero entry in each row (the leading entry) is the number .
2. The leading entry of each row is to the right of the leading entry in the row immediately above it.
3. All rows consisting entirely of zeros are the bottom of the matrix
If the matrix also satisfies the following condition, it is in reduced row-echelon form.
4. If a column contains a leading entry, then every other entry in that column is .
1. The first nonzero entry in each row(the leading entry) is the number
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