Is there an estimation of how many stars there are in this known universe?
Yes, but it is very rough so far as I know.
An estimated 100 billion galaxies are thought to exist, and I mean it when I say that each one contains several hundred billion stars on average.
As I mentioned before, it's a little hazy, but it's safe to say that it's a huge number (it's about a mole of stars, which is irrelevant but makes you think...)
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Estimates suggest there are between 100 billion to 200 billion galaxies in the observable universe, with each galaxy containing hundreds of billions of stars. This means there are roughly 10^24 stars in the observable universe.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
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