Mathematics · Matrices and Determinants
Which of the following statements is NOT correct regarding the row echelon form of a matrix?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The first non-zero element in each column must always be 1.✓
- 2The first non-zero element in each non-zero row is 1.
- 3If the leading entry in each non-zero row is 1, all entries below it in that column are zero.
- 4The reduced row echelon form of a matrix is unique.
Correct answer
The first non-zero element in each column must always be 1.
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