Double integral, the integrand is Max {(XY), 1}, and the integral region is 0

Double integral, the integrand is Max {(XY), 1}, and the integral region is 0

Through the point (1,1) to the x-axis, Y-axis as a vertical line, together with the curve xy = 1, the square is divided into four areas, respectively integral
The original formula = ∫ [0,1] ∫ [0,1] dydx + ∫ [1,2] ∫ [0,1 / x] dydx + ∫ [1,2] ∫ [0,1 / y] DXDY + ∫ [1 / 2,2] ∫ [1 / x, 2] xydydx