Question: What is the x-intercept of the function y = cos(x) in the interval [0, 2π]?

Options:

1. 0
2. π/2
3. π
4. 3π/2

Correct Answer: π

Solution:

The cosine function equals zero at x = π/2 and x = 3π/2. The x-intercepts in [0, 2π] are π/2 and 3π/2.