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Complex numbers: algebraic form
Solving in C
MCQ
What are the solutions of the equation z² + z + 1 = 0 in C?
Possible answers
It has no solution, because its discriminant is negative
−
1
+
i
3
2
\dfrac{-1 + i\sqrt{3}}{2}
2
−
1
+
i
3
and
−
1
−
i
3
2
\dfrac{-1 - i\sqrt{3}}{2}
2
−
1
−
i
3
i
i
i
and
−
i
-i
−
i
1
1
1
and
−
1
-1
−
1
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