2. Write your solutions for this question on the Answer Sheets, Page 1 Let A be a 4 7 matrix. The following matrix is obtained after ap- plying some elementary row operations to A: 0 3 1 0 0 0 10 101 2 0 0 0 0 1 4 1 0 101 01 2 arks] (a) Find a basis for the row space of A, and determine the dimension of row( A). arks ] (b) Find the nullity of the matrix A. arks ] (c) Find the dimension of the range of the matrix transformation TA defined by A