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Question
Given the complex number z = 2 + 3i, represent the complex numbers in Argand diagram
z, iz and z + iz
Solution
z = 2 + 3i
iz = i(2 + 3i)
= (2i – 3)
= – 3 + 2i
z + iz = (2 + 3i) + (– 3 + 2i)
= – 1 + 5i
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