# Russianal Limits

Calculus Level 1

If $$L=\displaystyle \lim_{x \rightarrow 0} \frac{\sqrt{x^{2} + 2014^{2}}-2014}{\sqrt{x^2+2015^{2}}-2015}$$, and $$L$$ can be represented in the form $$\dfrac{a}{b}$$, find $$a-b$$. Ensure that $$a$$ and $$b$$ are relatively prime.

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