1 / | | 1 | -------------- dx | 2 | (1 + cosh(x)) | / 0
Integral(1/((1 + cosh(x))^2), (x, 0, 1))
/ /x\ 3/x\ | tanh|-| tanh |-| | 1 \2/ \2/ | -------------- dx = C + ------- - -------- | 2 2 6 | (1 + cosh(x)) | /
3 tanh(1/2) tanh (1/2) --------- - ---------- 2 6
=
3 tanh(1/2) tanh (1/2) --------- - ---------- 2 6
tanh(1/2)/2 - tanh(1/2)^3/6
Use the examples entering the upper and lower limits of integration.