1 / | | ______________ | / 2 | / 2 - x | / ------------ dx | / 2 | \/ 4 - (x + 1) | / -1
Integral(sqrt((2 - x^2)/(4 - (x + 1)^2)), (x, -1, 1))
1.94053940965034
Use the examples entering the upper and lower limits of integration.