If f(x) = 1 / (1 + x²), what is the maximum value of f(x)?
Question 1
Q1. If f(x) = 1 / (1 + x²), what is the maximum value of f(x)?
Answer: 1
Explanation: The denominator 1 + x² is always ≥ 1, so f(x) = 1 / (1 + x²) ≤ 1, with maximum at x = 0.