(Solved): Thank you for helping me.  - . By Green's formula , let A - ( M (2,4), N(X,Y),0). Also, = n s ...

Thank you for helping me. 

- . By Green's formula , let A - ( M (2,4), N(X,Y),0). Also, = n suppose that a single closed curve C is represented as =(((t), y(t),0) Castsb). In this case, show that the Green's formula can be written as dr , ( S.A.dk - SS. COXA) E dado R C