Symmetry and Cancellation: Roots of Unity Filter
Read this topicProblems 2
- A set of 10 distinct integers SSS is chosen. Let MMM be the number of nonempty subsets of SSS whose elements have an even sum. What is the minimum possible value of MMM? Source:…
- What is the value of the sum ∑z1∣1−z∣2,\sum_z \frac{1}{{\left|1 - z\right|}^2} ,z∑∣1−z∣21, where zzz ranges over all 7 solutions (real and nonreal) of the equation z7=−1z^7 = …