Has any one ever seen a black hole with a naked eye or through a telescope?
Josiah AdamsNo.
If something is a black hole, it means that all matter and particles in its vicinity are being absorbed. As a result, light would be drawn in and rendered invisible to you.
Black holes are theorized by astronomers based on observed absences in space.
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Luke AllenSince black holes do not release light, it is not possible to observe them directly with telescopes; however, one can infer their presence by observing the effects they have on nearby stars and gas.
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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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