Surface Integral Homework: Double Integral of (xy+e^z)dS

Join the discussion
Ask a follow-up here, or get your own question answered by working scientists, mathematicians and engineers — people, not an autocomplete.
Real named experts · corrections over time · the nuance an AI answer skips
1 replies · 2K views
PsychonautQQ
Messages
781
Reaction score
10

Homework Statement


Take the double Integral of (xy+e^z)dS where S is the triangle with vertices (0,0,3),(1,0,2),(0,4,1).


Homework Equations





The Attempt at a Solution


So the equation of the plane for the triangle given is z = 3 - x - (1/2)y. We plugged that Z into the z from the function given and are having a bit of trouble finding the bounds we integrate the double integral over. Help?
 
on Phys.org
PsychonautQQ said:

Homework Statement


Take the double Integral of (xy+e^z)dS where S is the triangle with vertices (0,0,3),(1,0,2),(0,4,1).


Homework Equations





The Attempt at a Solution


So the equation of the plane for the triangle given is z = 3 - x - (1/2)y. We plugged that Z into the z from the function given and are having a bit of trouble finding the bounds we integrate the double integral over. Help?

If you take z as a function of x and y, you want to project the 3 vertices down to the xy plane and use the triangle it forms for the limits.