Question: please help me with this question. 1. Matrix A and its echelon form are given below. Find a basis for the column space of A

please help me with this question.

1. Matrix A and its echelon form are given below. Find a basis for the column space of A (Col A) and a basis for the null space of A (Nul A). A Echelon form of A 4 5 9 -2 1 2 6 -5 6 5 1 12 ~~~ 0 1 5 -6 3 4 8 3 0 0 0 0

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