If is an imaginary cube root of unity, then (1+ - ^ 2 )^ 2 equals

Mathematics · JEE Main · NTA ExamsComplex Numbers and Quadratic Equations

If \(\omega\) is an imaginary cube root of unity, then \(\left(1+\omega-\omega^{2}\right)^{2}\) equals
  1. \(128 \mathrm{~m}\)
  2. \(-128 \omega\)
  3. \(128 \omega^{2}\)
  4. \(-128 \omega^{2}\)

Answer

(B) -128

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