Posted by **Bethany** on Sunday, December 16, 2007 at 2:53pm.

We have to simplify complex numbers and I was wondering whether I did these problems correctly.

1. 4i^2-2i^3 = -4+2i

2. (-i)^3 = i

3. (the square root of a -2)^6= -8

4.1/(2i)^3 = i/8

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