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## Homework Statement

Give bases for row(A), col(A), and null(A).

A= [2,-4,0,2,1;-1,2,1,2,3;1,-2,1,4,4]

## Homework Equations

## The Attempt at a Solution

My answers were: bases for row(A)......[1,-2,0,1,1/2] and [0,0,1,3,7/2]

col(A).......[2;-1;1] and [0;1;1]

null(A)......[2;1;0;0;0],[-1;0;-3;1;0] and [-1/2;0;-7/2;0;1]

If anyone can check this it would be greatly appreciated. I think I know what I am doing, I just want someone to make sure. Thanks