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