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