Question

3. Let A and B be 2 x 2 matrices. Which of the following statements are TRUE? (i) If AB = 0, then either A = 0 or B=0. (ii) If A² = 1, then either A = I or A= -1. (iii) (AB)2 = A2B2 (A) (i) only (B) (ii) only (C) (iii) only (D) (i), (ii), and (iii) (E) none of (i), (ii), or (iii)