Question

6:11 & % A5: Problem 4 Previous Problem Problem List Next Problem (1 point) If A and B are arbitrary real m x n matrices, then the mapping A, B) trace(A' B) defines an inner product in IRmXn, Use this inner product to find (A, B), the norms |A and |B, and the angle aA,B between A and B for 2-2 (A, B) A,B Note: You can earn partial credit on this problenm Preview My Answers Submit Answers You have attempted this problem 0 times You have unlimited attempts remaining

ANSWER THE FOURTH PART.

Answer 1

"A = [- 2 3 - 1 - 2 1 1] B = [3 1 - 2 2 1 1] A^T = [- 2 - 2 3 1 - 1 1] A^T B = [- 1 - 7 - 2 - 2] < A B > = trace(A^T B) = -1 + (- 2) = -3