# Green's Theorem : Evaluating a Line Integral

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Use Green's Theorem to evaluate the line integral Sc xy dx +x^2y^3 dy where C is the triangle with vertices (0,0), (2,0) and (2,2).

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#### Solution Preview

I = integration (along C) [x*y*dx + x^2*y^3*dy]

By Green's theorem,

integration(along C)[f1*dx + f2*dy]

= integration (over region E) [ del(f2)/del(x) - del(f1)/del(y)]dx*dy

Here,

f1 = x*y => del(f1)/del(y) = x,

and,

f2 = x^2*y^3 => ...

#### Solution Summary

Green's Theorem is used to evlauate a line integral. The solution is well-explained.

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