Please provide step-by-step solution. Thank you.

QUESTION Consider the following matrices, where k, p and m are all non-zero constants: 1 n O [2k k] k 21 1 0 41 C = 1 2 4 D = A = B = k 0J 3 k m 1 3 0 1. a) Calculate BC b) Determine the values of k for which (AD) -1 exists