Select whether each statement is true or false. 1. ? ✓ If a matrix is in reduced-row echelon form, then the first nonzero entry in each row is a 1 and has 0's below it. 2. ? If an augmented matrix in reduced row-echelon form has 2 rows and 3 columns (to the left of the vertical bar), then the system has infinitely many solutions. 3. ? If the bottom row of a matrix in reduced row-echelon form contains all O's, then the system has infinitely many solutions. Note: I ? T F Learn partial credit on this problem

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