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Robert
Lv 4
Robert asked in Science & MathematicsMathematics · 7 years ago

What kinds of real integers have complex cubic roots that are algebraic integers?

Besides 1?

1 Answer

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  • grunfeld
    Lv 7
    7 years ago

    x^3 = a

    Now let re^(i*u) = r [ cos u + i*sin u] = x

    you finish it.

    Source(s): my brain
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