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Which collection lists every complex solution of z^4 = 1?
A{1, ω, ω^2, 0}
B{1, −1, i, −i}
C{1, i, 2i, −1}
D{1, −1, 2, −2}
Answer & Solution
Correct answer: B. {1, −1, i, −i}
Each of 1, −1, i and −i raised to the fourth power equals 1.
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