1 / | | 1 | 1*---------- dx | cos(x) + 1 | / 0
Integral(1/(cos(x) + 1), (x, 0, 1))
/ | | 1 /x\ | 1*---------- dx = C + tan|-| | cos(x) + 1 \2/ | /
tan(1/2)
=
0.54630248984379
Use the examples entering the upper and lower limits of integration.