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OpenStudy (anonymous):
Cube root of i
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OpenStudy (anonymous):
answer: -i because (-i)^3 = i This is from (-i)(-i)(-i) = -(-1)i = i
OpenStudy (anonymous):
A little more explicitly: (-i)^3 = (-i)(-i)(-i) = [(-1)^3](i^3) = -(i^3) = (-1)(i^2)(i) = (-1)(-1)(i) = i
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