Ellipse Integral

[Guest]

[tex]\int\limits_{a}^{b}[/tex] [tex]a/(1-b*cos(x)) / sin(arctan((-1+b*cos(x))/(b*sin(x))))[/tex]

Help to solve this problem

a and b are constants

[HallsofIvy]

I have never been able to figure out what "a/b/c/d" means! Is it [tex]\frac{\frac{a}{b}}{\frac{c}{d}}[/tex] or [tex]\frac{a}{\frac{b}{\frac{c}{d}}}[/tex] or ...?