3 / | | -1 | -------- dx | 2 | (x + 1) | / 1
Integral(-1/(x + 1)^2, (x, 1, 3))
/ | | -1 1 | -------- dx = C + ----- | 2 1 + x | (x + 1) | /
-1/4
=
-0.25
Use the examples entering the upper and lower limits of integration.