k) 1–3i l) 1 + 3i – If z = 3 + 5i, represent each of the following on an Argand diagram z zi zi2 zi3 zi4 If z1 = 5 + 2i and z2 = 2 + 4i. Determine z1 + z2 algebraically. Hence, show z1 + z2 graphically. Given: z1 = 8 and z2 = 4 6i. –4i – Determine z1 z2 algebraically. – Hence show z1 z2 graphically. – The argument of z Examples
k) 1–3i l) – 1 + 3i If z = 3 + 5i, represent each of the following on an Argand diagram z zi zi2 zi3 zi4 If z1 = 5 + 2i and z2 = 2 + 4i. Determine z1 + z2 algebraically. Hence, show z1 + z2 graphically. Given: z1 = 8 –4i and z2 = 4 – 6i. Determine z1 – z2 algebraically. Hence show z1 – z2 graphically. The argument of z Examples
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