December 2019 1 32 Report
3) Calcule a integral de linha ∫c (2x + y) dx - (x - 4xy) dy. Sendo C o círculo x² + y² = 1, percorrido uma vez no sentido anti- horário. Use teorema de Green.

da = r dr dθ
0≤ r ≤ 1
0≤ θ ≤ 2π

x = r cos θ
y = r sen θ

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