Solving Derivatives: Tips & Tricks

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Homework Help Overview

The discussion revolves around solving derivatives, specifically focusing on the application of the chain rule in differentiation. Participants are sharing their working steps and seeking clarification on their approaches.

Discussion Character

  • Exploratory, Assumption checking, Mathematical reasoning

Approaches and Questions Raised

  • Participants are reviewing each other's steps in differentiating a function, with some questioning the application of the chain rule and others attempting to correct or clarify previous lines of working.

Discussion Status

The discussion is active, with participants providing feedback on each other's work. Some guidance has been offered regarding the correct application of the chain rule, and there are indications of multiple interpretations of the problem being explored.

Contextual Notes

There appears to be some confusion regarding the correct application of differentiation rules, particularly the chain rule, which is a central point of discussion. Participants are also working within the constraints of homework guidelines that may limit the extent of assistance they can provide.

Styx
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I'm not sure if I have been doing this one right, or where I can go from here...
 

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Your first line was correct, but leave the working at the 2nd line.
 
Your second line is incorrect-- you forgot to apply the chain rule.
 
Oops that reminds me, Rewrite my last post as 1st and 2nd lines of working.

The 1st line of working you forgot the chain rule, however you rectified the error on the next line.
 
Use the chain rule, u=3x^2+5,u'=6x,v=2x^2-x,v'=4x-1,y=vu^8,y'=8vu^7 so dydvdu/dvdudx=dy/dx
 

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