pi -- 4 / | | 1 | --------- dx | 2 | sin (2*x) | / pi -- 8
Integral(1/(sin(2*x)^2), (x, pi/8, pi/4))
/ | | 1 cos(2*x) | --------- dx = C - ---------- | 2 2*sin(2*x) | sin (2*x) | /
1/2
=
0.5
Use the examples entering the upper and lower limits of integration.