Question

(｀・ω・´)

求這題～～～

9. Let f(x):
=
1
,
f(0) = 0
7 dx fixty) = ax (tex) +Pay) +zry) = f(x+y) dx
dx
for x > 0. Show that the area of the triangle, which is
X
bounded by any tangent line to the curve of f and the two coordinates +
axes, is of 2 square units.
f(0) = 0 {x