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14 votes
What is the square root of -1?
-i
i
-1
1

2 Answers

9 votes
Always remember the square root of negative one is equal to i.
Example: The square root of -4 would be 2i because The square root of 4 is 2 and the square root of -1 is i.
User Nithin Paul
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7 votes
i

Explanation:
(Word cap filler)
User Hypaethral
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