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ISI-2004-8

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If $\alpha _1, \alpha _2,\dots,\alpha _n$ be the roots of $x^n + 1 = 0$, then $(1-\alpha _1)(1-\alpha _2)\dots(1-\alpha _n)$ is equal to

  1. $1$
  2. $0$
  3. $n$
  4. $2$
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