pi -- 4 / | | _______________________ | \/ cos(2*x) - 2*sin(2*x) dx | / -pi ---- 4
Integral(sqrt(cos(2*x) - 2*sin(2*x)), (x, -pi/4, pi/4))
(1.23670321134425 + 0.555345643630761j)
(1.23670321134425 + 0.555345643630761j)
Use the examples entering the upper and lower limits of integration.