# [solved] exponent rules

1. ### Nikitin

768
problem is solved.

Last edited: Nov 24, 2013
2. ### Pythagorean

4,603
i is sqrt (-1) ,
-1 is NOT sqrt (i)

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3. ### Nikitin

768
oops, you're right. embarrassing mistake, forget this threat!

4. ### Pythagorean

4,603
You shouldn't delete the question, though. Part of the point of the forum is so that when others have the same question they can resolve it without ever having to ask.