Simplify the power of i to i, 1, -i or -1.i-27

A. i
B. 1
C. -i
D. -1


Answer: A

Mathematics

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A.

B.

C.

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Find all solutions of the equation in the complex number system.x3 + 1 = 0

A. {-1}
B. {-1,  +  - }
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