Question: (5 marks) Question 2 (15 marks) z + 2i a) Let a complex number z =-5i+3. Find in the standard form x+ yi .

(5 marks) Question 2 (15 marks) z + 2i a) Let a

(5 marks) Question 2 (15 marks) z + 2i a) Let a complex number z =-5i+3. Find in the standard form x+ yi . (4 marks) b) Given that z, = V3 +i and z, = -2-3i. Find the modulus and argument of z, and z,. Hence, express z,z, in the form r(cos 0+isin 0). (6 marks) c) By using De Moivre's theorem, find (3V5 3i) in the standard form. (5 marks) 1 +|IN

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