Final answer:
To find the partial derivatives of a given surface or function, you need to take the derivative of the function with respect to each variable separately while holding the other variables constant.
Step-by-step explanation:
The question seems to be asking for the partial derivatives of a given surface or function. The concept of partial derivatives is commonly studied in calculus and is used to find the rate of change of a function with respect to one variable while holding the other variables constant. To find the partial derivatives, we take the derivative of the given function with respect to each variable separately. For example, if we have a function f(x, y), the partial derivative with respect to x is denoted as ∂f/∂x and with respect to y is denoted as ∂f/∂y. We can find the partial derivatives of the given surface by following these steps.