- #1

- 42

- 1

## Homework Statement

I need find the function ##F(x)## .

## Homework Equations

##\int_0^r F(x)dx = \frac{r^3}{(r^2+A)^{3/2}}+N##

where ##A,N## are constants.

## The Attempt at a Solution

I tried using some function of test, for instance the derivative of the right function evaluated in x. But , i dont know how to solve this problem.