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Homework Statement
1) How do I know when to use Green's Theorem, the Fundamental Theorem for Line Integrals or the regular method of using parametrization?
2) Assuming that the three methods above are all used to solve line integrals, why do the Fundamental Theorem and Green give different answers? My textbook solves ##\int_C F \cdot dr## given ##F(x,y,z) = yz \vec i + xz \vec j + (xy + 2z) \vec k## and C is the line segment fro (1, 0, -2) to (4, 6, 3). It is can be derived that the vector field is conservative. If it's conservative, solving with Green's Theorem gives zero, but using the Fund Thm, the answer is 77.
3) What is the difference between a vector field and a line integral?
4) Intuitively, what is the difference between solving ##\int_C y^2dx + xdy ## and ##\int_C 2+x^y ds ##? If ##dx## and ##dy## signify integrating the line integral along the x and y direction, what is ##ds##? Is there an s-axis somewhere?
Homework Equations
n/a
The Attempt at a Solution
My textbook's chapters don't seem to be related to one another, which is why I am confused.