Hi,

is the formula for ds equal to

$\displaystyle

ds = sqrt(( (pz/px)^2 + (pz/py)^2 + 1)) $

where p = partial derivative

many thanks

Problem:

For the parametrically defined surfaceSgiven by , find each of the following differentials.

In ,dS= ________du dvIn ,d= ___________Sdu dv