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Um Curso de Calculo - Vol

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P(x, y) dx + Q(x, y) dy = 0.

Se

com h contínua, a equação admitirá o fator integrante

Se

com f contínua, a equação admitirá o fator integrante

Exemplo 1

Resolva a equação

(x 2 + y 2 ) dx + (x 3 + 3xy 2 + 2xy) dy = 0.

Solução

P(x, y) = x 2 + y 2 e Q(x, y) = x 3 + 3xy 2 + 2xy.

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