Nth Roots of -1: Distribution on the Unit Circle

① This example visualizes how the nth roots of -1 are evenly distributed on the unit circle in the complex plane, forming vertices of a regular n-gon. ② Core mathematical concepts include polar form of complex numbers, De Moivre's theorem, and the relationship between nth roots of unity and roots of -1, emphasizing angle division and symmetry. ③ Construction highlights: using the GeoGebra Sequence command to generate n roots stored in list1, with n as a slider parameter to dynamically adjust the number of roots and observe the changing distribution. ④ Suitable for high school or introductory college courses on complex numbers and trigonometry, helping students intuitively grasp powers and roots of complex numbers, equal division of the circle, and the connection between algebra and geometry.