let, \ T = <br /> \[\begin{bmatrix}<br /> 1 & 3 & -7 \\<br /> 2 & -1 & 0 \\<br /> 3 & -1 & -1\\<br /> 4 & -3 & -2<br /> \end{bmatrix}<br /> \]
determine a basis for the (a) range space of T and (b) null space of T

well,i know that Null space of the matrix is the collection of Xs where TX=O
and range of T is the collection of all possible linear combinations of the column vectors of T. from this, how can i get the answers?