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Let z be a complex number such that the imaginary part of z is nonzero and a = z^2 + z + 1 is real. Then a cannot take the value ?

Let z be a complex number such that the imaginary part of z is nonzero and a = z^2 + z + 1 is real. Then a cannot take the value ?

Grade:11

2 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
4 years ago
Dear student

The answer is a can not take any value >3/4

Regards
Vikas TU
14149 Points
4 years ago
Dear studentThe answer is a can not take any value >3/4Regards..........................................

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