Evaluate:
sqrt(i)+sqrt(-i).
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There are at least 3 distinct methods
(In reply to
2nd method by Larry)
Sorry, Larry. ±i√2 is cannot be a solution, because when sqrt(i)+sqrt(-i) is squared we get 2, not -2. This has nothing to do with "principal roots argument". No matter which way you land on that argument, ±i√2 is not a solution.