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JEE Main & Advanced Sample Paper JEE Main - Mock Test - 45

  • question_answer
    If \[{{x}_{n}}=cos\left( \frac{\pi }{{{2}^{n}}} \right)+i\,sin\left( \frac{\pi }{{{2}^{n}}} \right)\], then \[{{X}_{1}}{{X}_{2}}{{X}_{3}}....\] is equal to

    Answer:

    -1.00


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