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11th Class Mathematics Sample Paper Mathematics Olympiad - Sample Paper-12

  • question_answer
    If z and \[\omega \] are two non-zero complex numbers such that\[\left| z\,\omega  \right|=1\]and\[arg\,\text{(z)}-arg\,(\omega )=\frac{\ne }{2}\],then \[\overline{z}\,\omega \] is equal to

    A)  - i          

    B)  - 1            

    C)  i                     

    D)  1

    Correct Answer: A

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