A = (0, 9.84)
B = (-0.005563729922442974, -3.6189291066533866)
C = (5.423438687585479, 4.3360674912228045)
D = (10.663934076707708, 4.562275925285634)
E = Point(xAxis)
F = Point(xAxis)
poly1, c, d, e, f = Polygon(C, D, E, F)
G = (3.80227824346853, 2.9411154811686853)
H = (8.745966678194266, 6.86894157185409)
I = (10.963822568339086, 7.185071087758074)
J = (5.4611400932626175, 5.0523941990884325)
g = Polynomial({G, H, I, J})
h = Function(g, 3.8, 11.0)
a = Integral(h, 3.8, 11.0)
b = Integral(h, 3.802, 10.964)