Limit evaluation. (Please confirm my work)

In summary, the conversation involves evaluating a limit and using synthetic division to simplify the polynomial. The final answer is 3, which is confirmed by the other person in the conversation.
  • #1
mateomy
307
0
Evaluate:

[tex]
\lim_{x \to 2}\,\frac{x^3-4x^2+7x-6}{x-2}
[/tex]


To evaluate this limit did some synthetic division to ultimately get the polynomial of
[tex]
x^2-2x+3
[/tex]

and evaluating this as as [itex]x\to2[/itex] I ended up with a final answer of 3.

Can someone just confirm that this is in fact, the correct answer. I have nothing to check my work with and I am just making sure all my skills are in order before my final.

Thank you very much in advance.
 
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  • #2
Yes, this is correct. You could also use L'Hopital's rule to check, if you know about that.
 
  • #3
Awesome thanks. No, not quite at L'Hopital yet, next semester.
 

1. What is limit evaluation?

Limit evaluation is a mathematical concept used to determine the value that a function approaches as its input approaches a particular value.

2. How is limit evaluation used in real-world applications?

Limit evaluation is used in various fields of science and engineering to model and analyze physical phenomena, such as the rate of change of a chemical reaction or the speed of a moving object.

3. What is the purpose of limit evaluation?

The main purpose of limit evaluation is to understand the behavior of a function near a particular point, which can provide insights into the overall behavior of the function.

4. How is limit evaluation different from regular evaluation of a function?

The main difference between limit evaluation and regular evaluation of a function is that limit evaluation focuses on the behavior of the function near a particular point, while regular evaluation looks at the overall value of the function at a specific point.

5. Are there any limitations to limit evaluation?

Yes, limit evaluation may not always provide an accurate representation of the overall behavior of a function, as it only focuses on the behavior near a particular point. Additionally, some functions may have discontinuities or undefined points that cannot be evaluated using limits.

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