What is ? I know is the row space of .
For the following matrix, determine a basis for each of the subspace , , , and .
So I found the RREF of A to be
forms a basis for and forms a basis for .
Setting and I got
So x is a equal to the N(A)? This is where I am stuck, I don't know where to go from here or even if I begun my process correctly. Help would be greatly appreciated, thank you!
If you could do so, factor out , then you can easily see a basis element of .
Hope this helps.