Rewriting Equations with Derivatives: A Quick Guide

Thread starter Jess1986
Start date Mar 28, 2006

Mar 28, 2006

Jess1986

Show that m(2r'a' +ra'')=0 can be rewritten as md/dt(r^2*a')=0

Has anyone got any tips on how i should go about this?? Thanks x

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Mar 28, 2006

Doc Al

Mentor

Use the product rule to take the derivative.

Mar 28, 2006

TolsePhy

it's trivial. you can jump to the solution directly.

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