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Marie221
Nov 16, 2007, 03:49 AM
Differentiate implicitly xlny=10^4

KISS
Nov 16, 2007, 05:37 AM
With respect to what? i.e. dy/dx. Is lny really ln(y)?

galactus
Nov 16, 2007, 03:26 PM
I assume we will treat y as a differentiable function of x.

xln(y)=10000

x\cdot\frac{1}{y}\cdot\frac{dy}{dt}+ln(y)=0

Solve for dy/dt.