Finding the Limit by Interpreting an Expression as an Appropriate Derivative

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SUMMARY

The limit expression Lim [1/h * ln(3+h)/3] as h approaches 0 can be interpreted as the derivative of the natural logarithm function. The correct formulation of the limit is Lim [1/h * (ln(3+h) - ln(3)] as h approaches 0, which represents the difference quotient for the derivative of ln(x) evaluated at x=3. This interpretation clarifies the relationship between the limit and the derivative, allowing for a straightforward application of calculus principles.

PREREQUISITES
  • Understanding of limits in calculus
  • Familiarity with natural logarithm properties
  • Knowledge of derivative definitions and difference quotients
  • Basic skills in algebraic manipulation
NEXT STEPS
  • Study the definition of derivatives using difference quotients
  • Learn about the properties of natural logarithms
  • Practice solving limits involving logarithmic functions
  • Explore applications of derivatives in real-world scenarios
USEFUL FOR

Students studying calculus, particularly those preparing for AP Calculus BC, and anyone looking to strengthen their understanding of limits and derivatives involving logarithmic functions.

Loppyfoot
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Homework Statement



Find Lim [ 1/h*ln(3+h)/(3)] by interpreting the expression as an appropriate derivative.
h→0

Homework Equations



I am confused on how to solve this problem for a review packet for Calc BC. I seem to have forgotten how to solve this problem and hopefully someone can give me some pointers!
 
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Are you sure you have the problem written correctly? Something like this, maybe?
[tex]\lim_{h \rightarrow 0}\frac{ln(3 + h) - ln(3)}{h}[/tex]

What you have doesn't look like a limit expression for any derivative that I can think of.
 
The second "3" should be inside the logarithm: ln((3+h)/3)= ln(3+h)- ln(3)

(1/h) ln((3+h)/3)= (1/h)(ln(3+h)- ln(3)) is the difference quotient for the derivative of ln(x) at x= 3.
 

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