1. W

    Null, row and colum space

    Question 1 If A is an n x n matrix and the homogeneous system ATx = 0 has a unique solution, what can you say about the dimension of the row space and column space of A? Question 2 Suppose A is an m x n matrix of rank r, and E is an n x m elementary matrix. Let B = EA, indicate whether each...
  2. Rimas

    Two colum Proof Statement Reason

    Prove that a square is a rhombus