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JEE Main & Advanced Mathematics Complex Numbers and Quadratic Equations Question Bank De Moivre's theorem and Roots of unity

  • question_answer
    Square of either of the two imaginary cube roots of unity will be

    A) Real root of unity

    B) Other imaginary cube root of unity

    C) Sum of two imaginary roots of unity

    D) None of these

    Correct Answer: B

    Solution :

    Since imaginary cube root of unity are square of each other.


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