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## Homework Statement

http://img245.imageshack.us/img245/7535/38187200.th.jpg [Broken]

I need to find F from the picture above

## Homework Equations

## The Attempt at a Solution

My answer so far is:

[tex] \frac{-y}{(x^2+y^2)} \vec{i} + \frac{x}{(x^2+y^2)} \vec{j} [/tex]

is this correct?

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