Struggling with this limit value.(probably using taylor series)

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SUMMARY

The limit calculation of lim((e^x-1)/x)^(1/sin(x)) as x approaches 0 can be simplified using the Maclaurin series. By applying the series expansion for e^x and recognizing that sin(x)/x approaches 1 as x approaches 0, the expression can be transformed into a more manageable form. The discussion highlights the importance of logarithmic transformation to simplify the limit evaluation process.

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  • Understanding of Maclaurin series expansions
  • Familiarity with limits in calculus
  • Knowledge of the behavior of sin(x) as x approaches 0
  • Basic logarithmic properties and transformations
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  • Learn about limit evaluation techniques in calculus
  • Explore the properties of exponential functions and their series expansions
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Students studying calculus, particularly those focusing on limits and series expansions, as well as educators seeking to clarify limit evaluation techniques.

Jarfi
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Struggling with this limit value

Homework Statement



Calculate lim((e^x-1)/x)^(1/sin(x)) where x[itex]\rightarrow0[/itex]

Homework Equations



Maclaurin series.

sin(x)/x -----> 1 when x->0 (possibly)

The Attempt at a Solution



(e^x-1)/x)^(1/sin(x) = ((x+x^2/2+x^3H(x))/x)^(1/sin(x)) =((1+x/2+x^2H(x))/x)^(1/sin(x))

Then getting something like:

1+(1/sinx)C(1)*(1+x/2+x^2H(x))/x) + (1+x/2+x^2H(x))/x)^2*(1/sinx)C(2)

which results in total chaos.

Anybody have a SIMPLE solution?

p.s sorry for the lack of readability, writing math in Physicsforums is a F-ing pain. I mean what the H is [it0ex]\rightharp0oonup[/it0ex] and [itex0]\frac{}{0}[/itex0] telling me.
 
Last edited:
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Hi Jarfi! :smile:
Jarfi said:
Calculate lim((e^x-1)/x)^(1/sin(x)) where x[itex]\rightarrow0[/itex]

log it first? :wink:
 
tiny-tim said:
Hi Jarfi! :smile:


log it first? :wink:

ah, you genius you !
 

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