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## Homework Statement

I need to prove that the following limit holds when

[tex]\sqrt{s}>>m[/tex]

[tex]\log\left(\frac{\sqrt{s}+\sqrt{s-4m^2}}{\sqrt{s}-\sqrt{s-4m^2}}\right) \rightarrow \log\left(\frac{s}{m^2}\right)[/tex]

## The Attempt at a Solution

I've tried several manipulations using logarithms properties but had no success.

Thanks

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