z4 + 1 = wurzel3*i
z^4 = -1 + √3i
|z^4| = √(1^2 + (√3)^2) = √(1+3) = √4 =2
|z| =r = 4√2
tan (4PHI) = √3/(-1) |arctan
4PHI = 120° + n180° = 2/3 π
PHI1 = 2/12 π = 1/6 π
1/6 + 1/2 = 1/6 + 3/6 = 2/3
1/6 + 1 = 7/6
2/3 + 1 = 5/3
z1 = 4√2 e^{πi/6}
z2 = 4√2 e^{2πi/3}
z3 = 4√2 e^{7πi/6}
z4 = 4√2 e^{5πi/3}