Question: (a) Given two complex numbers = 2 +31 and 2 = 3+4i, evaluate (1) -232, (01) 21 - 22 (1) 41-2, (iv) [7 marks]

(a) Given two complex numbers = 2 +31 and 2 = 3+4i, evaluate (1) -232, (01) 21 - 22 (1) 41-2, (iv) [7 marks]

(a) Given two complex numbers = 2 +31 and 2 = 3+4i, evaluate (1) -232, (01) 21 - 22 (1) 41-2, (iv) [7 marks] (b) Using De Moivre's theorem or otherwise, find the square roots of -15-8i. [8 marks] (c) Use the results of part (b) to solve the equation +(21-3)2 +5-i = 0. [10 marks]

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