Let A be a 3 x 5 matrix. Suppose A has 2 pivot columns. What is the dimension Nul(A), the null space of A? of 01 03 O 2 Let A 2 1 -1 0. Which of the following is a basis for the column space of A? Let A-0 0 4 6. Determine the rank of A and the dimension of Nul A Rank of A Rank of A Rank of A Rank of A 2: Dimension of Nul A-2 2: Dimension of Nul A 1 3: Dimension of Nul A 1 1: Dimension of Nul A3 Let -132 4 What is the dimension of H? O 2 O 1 O 3