' . 4L6tA- 22 4 2'l 10 91) . - - -5 T 3 .nnd let 1?: 0 1 5 D be the Reduced Row Echelon Fotm 3 7 8 0 0 0 0 1 (REEF) of A. (a) [4 points] If the column space of A is a subspace of R\". whet laJc? Find a heels for the column space of A. (b) [6 points] If the null space of A is a subspace of R", what is In? Find a. basis for the null Space of A. (c) [4 points] If the row space of A la a. subspace of IR". what in It? Find a heels for the row space of A. (d) [3 points] Find a, vector that belongs to the column space of A. Show how you found it. or prove that it is in the column space of A. (e) [3 points] Find a vector that belongs to the null space of A. Show how you found it, or prove that it. is in the null space of A