The partial fraction decomposition of (x² + x + 1) / (x - 1)(x + 1) is
Q1. The partial fraction decomposition of (x² + x + 1) / (x - 1)(x + 1) is
Answer: 1 + 3 / 2(x - 1) + 1 / 2(x + 1)
Explanation: Divide (x² + x + 1) by (x² - 1), then decompose the remainder into partial fractions.