(9 pts) Please circle the right answer. (a) (3pts) If A and B are square matrices with the same dimensions, then (A + B) x (A - B) = A2 - B2. True / False (b) (3pts) If A and B are two nonzero 2 x 2 matrices such that AB = 0 where 0 is the zero matrix, then A = 0 or B = 0 True / False (c) (3pts) Let A be a 3 x 5 matrix, B a 5 x 2 matrix, Ca 3 x 4 matrix, Da 4 x 2 matrix and E a 4 x 5 matrix, then which of the following is not defined? Circle all that apply. i. AB ii. EB iii. AC iv. AB + CD V. 2C(EB) (4 pts) If A is a matrix such that = then what are the dimensions of the matrix A