Solve Integral Problem: Tips & Ideas

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Homework Statement



im trying to solve this integral, though it is solvable using mathematica the solution is horrible. wondered if anyone has any cunning tricks or ideas

Homework Equations



integral between \int_{-\sqrt{E}}^\sqrt{E} \frac{\sqrt{E-W^2}}{BW^2+a}\,dW = n \pi
 
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what are you solving for? n in terms of the other values?
 
E in terms of n
 
I fixed your LaTeX.
calum.g said:

Homework Statement



im trying to solve this integral, though it is solvable using mathematica the solution is horrible. wondered if anyone has any cunning tricks or ideas


Homework Equations



integral between \int_{-\sqrt{E}}^{\sqrt{E}} \frac{\sqrt{E-W^2}}{BW^2+a}\,dW = n \pi

I would probably start with a trig substitution.
 
There are two things I don't understand about this problem. First, when finding the nth root of a number, there should in theory be n solutions. However, the formula produces n+1 roots. Here is how. The first root is simply ##\left(r\right)^{\left(\frac{1}{n}\right)}##. Then you multiply this first root by n additional expressions given by the formula, as you go through k=0,1,...n-1. So you end up with n+1 roots, which cannot be correct. Let me illustrate what I mean. For this...

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