Level:
Project ID:
2010013310
Source Problem:
Accepted:
0
Clonable:
1
Easy:
0
Find the quadratic equation with real coefficients such that one of the solutions is the complex number \(x_1=2\left(\cos\frac{2\pi}{3} + \mathrm{i}\sin \frac{2\pi}{3}\right)\).
\(x^2+2x+4=0\)
\(x^2-2x+4=0\)
\(x^2+4x+2=0\)
\(x^2+2\sqrt{3}x+4=0\)