[SOLVED] Kernel and Image 1. The problem statement, all variables and given/known data Ker(A) = Im(B) AB = ? A is an m x p matrix. B is a p x n matrix. 2. Relevant equations 3. The attempt at a solution Since Ker(A) is the subset of the domain of B and Im(B) is the subset of the codomain of B, AB = I. I = identity matrix. Is this right? It doesn't seem to make sense. There must be a mathematical (symbolic) way to solve for AB, right?