(a) Express the complex number (5 −2i)³ in the form a + bi. (b) Express the below complex number in the form a + bi. 6-5i i (4 + 4i) (c) Consider the following matrix. 3 + 2i 2+3i A = +4i 2-3i Let B=A¹. Find b21 (i.e., find the entry in row 2, column 1 of 4¯¹) if your answer is a + bi, then enter a,b in the answer box Enter your answer symbolically, as in these examples Enter your answer symbolically, as in these examples Attempt #3 5(a) 5(b) 5(c) Problem #5(a): Problem #5(b): Problem #5(c): Submit Problem #5 for Grading Attempt #1 Attempt #2 5(a) 5(a) 5(b) 5(b) 5(c) 5(c) Your Mark: 5(a) 5(a) 5(b) 5(b) 5(c) 5(c) Just Save Problem #5 Your Answer: 5(a) 5(b) 5(c) if your answer is a + bi, then enter a,b in the answer box if your answer is a + bi, then enter a,b in the answer box