## anonymous 3 years ago What happened to the denominator? How were they combined? $=\frac{k\lambda dy}{x^2+y^2}\frac{x}{\sqrt{x^2+y^2}}$ $=k\lambda x \frac{dy}{\left(x^2+y^2\right)^{3/2}}$

1. anonymous

@dumbcow

2. anonymous

oh the exponents are just added....durrrrrrrrr....sorry :S