Complex Numbers: Multiplying - Ex 2

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@cyberprodigy it's just like that, it's a property of complex numbers (so to speak?). Just keep in mind that i^2 = -1

JUICEEBOX
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@JUICEEBOX Looks like, that some how i miss that imaginary unit at school. Thank you JUICEEBOX

cyberprodigy
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@cyberprodigy
Lol such wordy explanations. All true,
i'd just say because:
i = √(-1) i² = [√(-1)]² = -1. square root of any numbered squared is the number itself.

SamDePasquale