If ω is an imaginary cube root of unity, then (1 + w – w 2 ) 7 is equal to
Mathematics · JEE Main · NTA Exams — Complex Numbers and Quadratic Equations
If ω is an imaginary cube root of unity, then (1 + w – w2)7 is equal to
- 128ω
- –128ω
- 128ω2
- –128ω2
Answer
(D) –128 ω 2
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