(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

From the formula [tex]t = \frac{L}{v+c} + \frac{L}{v-c}[/tex] I've made [tex]t = \frac{2L}{c}\left(\frac{1}{1 - \frac{v^2}{c^2}}\right)[/tex]. This is the problem:

[tex]\left(\frac{1}{1 - \frac{v^2}{c^2}}\right) = \left(\frac{1 + \frac{v^2}{c^2}}{1 - \left(\frac{v^2}{c^2}\right)^2}\right)[/tex]

How?

2. Relevant equations

That's kinda what I'm asking for. :-b

3. The attempt at a solution

I've gotten this far, but no more. I've tried to see how they relate, but I can't figure anything out.

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# Fractions in Einstein Relativity Theory

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