The ratio of the areas between the curves y = cosx and y = cos 2x and x-axis from x = 0 to x = π/3 is

The area common to the parabola y = 2x² and y = x² + 4 is

The area of the region bounded by the parabola y = x² + 1 and the straight line x + y = 3 is given by

The area between x-axis and curve y = cos x when 0 ≤ x ≤ 2π is

Area bounded by parabola y² = x and straight line 2y = x is