Let \( z \) be a complex number such that the imaginary part of \( ... VIDEO
Let \( z \) be a complex number such that the imaginary part of \( z \) is non-zero and \( a=z^{2}+z+1 \) is real. Then, \( a \) cannothttps://bit.ly/YTAI_PWAP https://www.pw.live
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