l. [5 plus.) Mark each statements True or False (Explanation is not required}. In Every proper subspace (a subspace but not the entire space) of R\" has strictly less dimension than n. u The subspace of a subspace of R\" may not be subspace of IR\". 2.|:5pts.}Let 12 1 4 A: 3 El 11 1 2 3 Find s basis of Nul{A} and GolfA} which denotes null space and column space of A respectively. 3. [5 pts.) Let 2 3 4 1 A = 4 1 3 2 2 2 1 Compute the rank of A and AT respectively. What can you tell from it