Need help on finding derivatives of logarithmic functions

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Homework Help Overview

The discussion revolves around finding the derivatives of logarithmic functions, specifically focusing on expressions involving products of polynomial and logarithmic terms.

Discussion Character

  • Exploratory, Mathematical reasoning, Assumption checking

Approaches and Questions Raised

  • Participants explore the application of the product rule and the chain rule in differentiation. Questions about the basic derivative of logarithmic functions are raised, along with attempts to clarify the rules involved in differentiation.

Discussion Status

The discussion includes various approaches to differentiate the given functions, with some participants providing insights into the rules of differentiation. There is a mix of attempts to guide the original poster without providing direct solutions.

Contextual Notes

Some participants express uncertainty about the original poster's request for guidance, indicating a need for clarification on the level of assistance desired.

jzq
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These are the problems (Please, just point me in the right direction):

[tex]y=x^{2}\ln(6x)[/tex]

[tex]f(x)=x\ln(12x)[/tex]
 
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Do you know the derivative of ln(x)?
 
whozum said:
Do you know the derivative of ln(x)?
1/x

10 char
 
The product rule -- d(uv)/dx = u'v + uv'
[edit: sorry had the answers, didnt know he didnt want to know them]
 
Last edited:
[tex]y = x^2ln(6x)[/tex]

[tex]\frac{dy}{dx} = \frac{d(x^2ln(6x))}{dx}[/tex]

which is of the form

[tex]\frac{d(u(x)v(x))}{dx} = u\frac{dv}{dx} + v\frac{du}{dx}[/tex]

Use the chain rule when necessary (in the logarithm).
 

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