Looking at the Friedman solution for a fluid with a given pressure and energy density, we have:(adsbygoogle = window.adsbygoogle || []).push({});

[tex]H^2 = \left(\frac{\dot{a}}{a}\right)^2 = \frac{8 \pi G}{3}\rho + \frac{\Lambda}{3} - \frac{k}{a^2}[/tex]

Would someone mind walking me through how we arrive ata?

Rev Prez

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# Example, please?

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