THE GATEBOOK

Normalization Lectures

A pivot position in a matrix is a location in that corresponds to a leading 1 in the reduced echelon form of . A pivot column is a column of that contains a pivot position.

Which of the following is the correct set of Pivot columns of above matrix (Assuming index of first column is 1)

(A).

(B).

(C).

(D).

Answer : B. 1,2,4 will be pivot columns.