Question

Which one of the following is true?
a) In a reduced echelon form, using different row operations, a matrix can be
reduced to more than one matrix
b) Only the augmented matrices are applicable for the row reduction algorithm
c) A solution set contains infinitely many solutions if is has free variables.
d) The variable that corresponds to the pivot column in the coefficient matrix is a
basis variable​

Answer 1

Step-by-step explanation:

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