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Hhhhhhhheeeeeeellllllllllllppppppppppp!?!?!!!?!?

Guest May 24, 2017
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 #1
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What is i? 

ummm.... what? 

mathguardian23  May 24, 2017
 #2
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"i" is the imaginary unit. :)

It has a definition of \(i = \sqrt{-1}\)

Because sqrt(-1) cannot be evaluated(What squared = -1??), so mathematicians imagined a number that satisfies x squared = -1. Therefore "i" is called the imaginary number. :)

MaxWong  May 25, 2017

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