Using Green's Theorem for Vector Fields

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SUMMARY

This discussion focuses on the application of Green's Theorem in vector fields, specifically the transition from the equation involving line integrals around curves C and -C to the equality of those integrals. The key steps involve calculating the derivatives of the components of the vector field, specifically ∂Q/∂x and ∂P/∂y, and utilizing the property that ∫_{-C} P dx + Q dy = -∫_{C} P dx + Q dy. This understanding is crucial for correctly applying Green's Theorem in solving problems related to vector fields.

PREREQUISITES
  • Understanding of Green's Theorem in vector calculus
  • Familiarity with line integrals and their properties
  • Knowledge of partial derivatives
  • Basic concepts of vector fields
NEXT STEPS
  • Study the derivation and applications of Green's Theorem in vector calculus
  • Learn how to compute line integrals for various vector fields
  • Explore the relationship between Green's Theorem and other theorems such as Stokes' Theorem
  • Practice problems involving the calculation of ∂Q/∂x and ∂P/∂y in different contexts
USEFUL FOR

Students and educators in mathematics, particularly those studying vector calculus, as well as professionals applying Green's Theorem in physics and engineering contexts.

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Homework Statement


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Homework Equations


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The Attempt at a Solution


I don't understand how the book went from calculating Green's theorem on ##\int _c Pdx + Qdy + \int _{-c'} Pdx + Qdy = ## (1 in the attached picture) to getting (labeled 2) ##\int _c Pdx + Qdy = \int _{c'} Pdx + Qdy ##

Thank you
 
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just work out the derivatives ##\frac{\partial Q}{\partial x}## & ##\frac{\partial P}{\partial y}## & use the fact that for a path C, ##\int_{-C} P\,dx + Q\,dy = -\int_{C} P\,dx + Q\,dy##
 

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