This math topic focuses on simplifying powers of the imaginary unit \( i \). Practicing these problems helps build understanding of the cyclical nature of powers of \( i \), where \( i^1 = i \), \( i^2 = -1 \), \( i^3 = -i \), and \( i^4 = 1 \) before repeating the cycle. The exercises include evaluating higher powers of \( i \) and matching them with the correct simplified values from multiple-choice options. This topic is part of a broader unit on complex numbers.