∫(sin²x + cos²x) dx from 0 to π/2 = ?
Question 1
Q1. ∫(sin²x + cos²x) dx from 0 to π/2 = ?
Answer: π/2
Explanation: Since sin²x + cos²x = 1, the integral becomes ∫1 dx from 0 to π/2, which equals π/2.