Solving the Derivative of 4^xlog_9(x) Without Logs

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SUMMARY

The discussion centers on finding the derivative of the function y=4^xlog_{9}(x) without using logarithms. The correct derivative is identified as 4^xln(4)log_{9}(x)+\frac{4^x}{xln(9)}. The participant realizes the necessity of applying the change of base formula to convert log base 9 into a more manageable form. This insight is crucial for solving similar problems in calculus.

PREREQUISITES
  • Understanding of calculus, specifically differentiation techniques.
  • Familiarity with exponential functions and their properties.
  • Knowledge of logarithmic functions and the change of base formula.
  • Experience with symbolic manipulation in mathematical expressions.
NEXT STEPS
  • Research the change of base formula for logarithms in depth.
  • Practice finding derivatives of exponential functions with varying bases.
  • Explore advanced differentiation techniques, including implicit differentiation.
  • Study applications of logarithmic differentiation in solving complex equations.
USEFUL FOR

Students in calculus courses, mathematics educators, and anyone looking to enhance their understanding of differentiation involving logarithmic and exponential functions.

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Homework Statement


Ok, so our professor gives us homework online which we submit online, its called webwork. This one equation I found the derivative of. Heres the thing, the program will not evalute answers with log base other than 10.

Homework Equations


The equation is:
y=4^xlog_{9}(x)
This is the derivative
4^xln(4)log_{9}(x)+\frac{4^x}{xln(9)}

The Attempt at a Solution


How do I express this by having no logs?
 
Last edited:
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Never mind,,
i realized I have to use the change of base formula, lol
 

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