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Question
Evaluate the following if z = 5 – 2i and w = – 1 + 3i
z – iw
Solution
z – iw = (5 – 2i) – i(– 1 + 3i)
= 5 – 2i + i + 3
= (5 + 3) + (– 2i + i)
= 8 – i
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