How do you find a limit as it aproaches infiniti

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In summary, as x approaches infinity, the values of sinx oscillate between 1 and -1, indicating that the limit does not exist.
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Homework Statement


limit x->infiniti sinx=


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The Attempt at a Solution

 
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  • #2
as x-->infinity values of sinx fall between 1 and -1 meaning that as x approaches infinity, sinx doesn't approach a specific value and so the limit doesn't exist
 
  • #3
I was sorely tempted to say that the limit as "it" approaches infinity must be infinity!

Of course, you mean the limit as x approaches infinity. As rock.freak667 said, look at what happens to sin(x) as x gets larger and larger- no matter how large x is, sin(x) keeps varying between -1 and 1. It does not "approach" and one number and so there is no limit.
 

FAQ: How do you find a limit as it aproaches infiniti

1. How do you define a limit?

A limit is defined as the value that a function approaches as the input of the function approaches a specified value. In the case of finding a limit as it approaches infinity, we are looking at the behavior of the function as the input values get larger and larger.

2. Why is it important to find limits as they approach infinity?

Finding limits as they approach infinity is important because it allows us to understand the behavior of a function at the extreme end of its domain. This can give us valuable insight into the overall behavior and characteristics of the function.

3. What is the process for finding a limit as it approaches infinity?

The process for finding a limit as it approaches infinity involves evaluating the function at larger and larger values of the input. This can be done by substituting in large numbers for the input and observing the resulting output. If the output values are approaching a specific number, that number is the limit.

4. What are some common techniques for finding limits as they approach infinity?

Some common techniques for finding limits as they approach infinity include algebraic manipulation, factoring, and using known limits of basic functions. The use of L'Hopital's rule and the squeeze theorem can also be helpful in certain cases.

5. Are there any limitations to finding limits as they approach infinity?

Yes, there are some limitations to finding limits as they approach infinity. In some cases, the limit may not exist or may be undefined. Additionally, certain functions may have more complex behavior at infinity, making it difficult to determine the limit. It is important to carefully consider the behavior of the function and use multiple techniques if necessary to accurately find the limit.

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