Prove that the nonzero row vectors ofa matrix in row-echelon form are linearly independent. Let = A be an m xn matrix in now-echelo form. If the first column of A is not all zero and e,., em en, denote leading ones, then the nonzero row vectors r,, ...r, of A, have the form of Select- -Select- Select-- and so forth. Then, the equation cr1 + Cr2 +cr= 0 ipelies which of the following equations? (Select all that apply.) O ce2m * C,e2m = 0 OGe1 - 0 O czean = 0 D ce, + ce2n Czean = 0 O ce3n + Czezn + C3e 3n O Cem + Cze2m - 0 You can conclude in turn that c, and so the row vectors are linearly independent.

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