Hi, im trying to find the partial dervative with respect to x of:

ln(sqrt(x^2+y^2+z^2)). Im really stuck, can someone please show me how you would work this out? Thank you.

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- Nov 11th 2008, 07:53 PMcowboys111Partial derivative please help
Hi, im trying to find the partial dervative with respect to x of:

ln(sqrt(x^2+y^2+z^2)). Im really stuck, can someone please show me how you would work this out? Thank you. - Nov 11th 2008, 11:56 PMPeritus
$\displaystyle

\frac{\partial }

{{\partial x}}\frac{1}

{2}\ln \left( {x^2 + y^2 + z^2 } \right) = \frac{x}

{{x^2 + y^2 + z^2 }}$