Finding the Limit of g(x) and r(x) as x Approaches a Specific Value

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Homework Help Overview

The discussion revolves around finding the limits of two functions, g(x) and r(x), as x approaches specific values. The functions include g(x) = (x-3)sin(1/(x-3)) + 2, with a focus on the limit as x approaches 3, and r(x) = 2 + (sin x)/x, with inquiries about its limits as x approaches infinity and zero.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants discuss the definition of limits and suggest using properties of limits to analyze the functions. Some express uncertainty about where to begin, while others reiterate the need for both limits to exist for certain limit properties to apply.

Discussion Status

The discussion is in an exploratory phase, with participants questioning foundational concepts related to limits and sharing suggestions for approaches. There is no explicit consensus on a method yet, but guidance has been offered regarding the application of limit properties.

Contextual Notes

Some participants express confusion about the initial steps required to tackle the problems, indicating a potential gap in understanding foundational concepts related to limits.

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let g(x)= (x-3)sin(1/(x-3))+2. Determin ethe limit by any means possible as x-->3.


let r(x)=2+((sinx)/x)
find the limit of r(x) as x aproaches infinity

make a conjecture about the limit of r(x) as x approaches zero. give evidence to support your conjecture.
 
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What have you done so far?
 
i don't know where to begin!
 
jessyca_lynne said:
let g(x)= (x-3)sin(1/(x-3))+2. Determin ethe limit by any means possible as x-->3.


let r(x)=2+((sinx)/x)
find the limit of r(x) as x aproaches infinity

make a conjecture about the limit of r(x) as x approaches zero. give evidence to support your conjecture.

I suggest you use [tex]lim_{x\rightarrow a}(F(x)\cdot G(x))=lim_{x\rightarrow a} F(x) \cdot lim_{x\rightarrow a}G(x)[/tex].
 
Well, do you know the definition of what it means to say

[tex]\lim_{x \rightarrow a} f(x) = L,[/tex]

or

[tex]\lim_{x \rightarrow \infty} f(x) = L[/tex]

?
 
Last edited:
radou said:
I suggest you use [tex]lim_{x\rightarrow a}(F(x)\cdot G(x))=lim_{x\rightarrow a} F(x) \cdot lim_{x\rightarrow a}G(x)[/tex].

This only works if both limits exist!
 
Last edited:

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