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Homework Statement
(i) Evaluate
[tex]\int_C \dfrac{-ydx + xdy}{9x^2 + 16y^2} [/tex]
when C is the ellipse
[tex]\dfrac{x^2}{16} + \dfrac{y^2}{9} = 1[/tex]
(ii) Use the ans to (i) to evaluate the integral along C' = ellipse:
[tex] \dfrac{x^2}{25} + \dfrac{y^2}{16} = 1[/tex]
Homework Equations
The Attempt at a Solution
I have done (i) but have no clue about (ii). great thnx for any help.