What is the area of the region bounded by x2+y2≤4x^2 + y^2 \leq 4x2+y2≤4 and x+y≥2x + y \geq 2x+y≥2?
π−2\pi - 2π−2
π\piπ
π/2\pi/2π/2
π−1\pi - 1π−1