Let's suppose we have an equation,(adsbygoogle = window.adsbygoogle || []).push({});

$$Ω_m+Ω_r+Ω_k=1$$

In this equation whats the values that ##Ω_k## can take ?

Only 1,0 or -1 ?

Also this equation is true for only "now" or any time in the universe ?

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# I Question about an equation

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