Zkoumejte obsah plochy ohračičené křivkou $y=ln(x)$ osou $x$ a usečkou $h$ a $g$.

c = 2 (slider from 2 to 5)
d = 10 (slider from 5 to 10)
f: y = log(x)
A: (c, log(c))
B: (c, 0)
g = Segment(A, B)
C: (d, log(d))
D: (d, 0)
h = Segment(C, D)