Final answer:
To evaluate the line integral ∫C xz ds, you need to parameterize the curve C, calculate the derivative of the parameterization, substitute the parameterization and its derivative into the integrand, and integrate with respect to the parameter.
Step-by-step explanation:
To evaluate the line integral ∫C xz ds, we need to know the curve C. Without that information, we cannot provide a specific answer. However, I can give you the general steps to evaluate a line integral. First, parameterize the curve C using a parameter t. Then, calculate the derivative of the parameterization with respect to t. Next, substitute the parameterization and its derivative into the integrand. Finally, integrate with respect to t over the given interval.