domingo, 4 de diciembre de 2016

ECUACIONES

El factor integrante y la solución de la ecuación diferencial 6xy dx + (4y+9x2)dy = 0 son respectivamente:
1. µ = y2
2. µ = x2
3. y4 + 3x2y3 + c = 0
4. y4 – 3x2y3 + c = 0

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