Number 6

Describe the vectors in the column space and nullspace of the following:

In[87]:=

  a6={{3,3,-3,1,11},{-4,-4,7,-2,-19},{2,2,-3,1,9}};
  MatrixForm[a6]

Out[87]=

  3     3     -3    1     11
  
  -4    -4    7     -2    -19
  
  2     2     -3    1     9