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Teoría - Canek - UAM

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14 Ecuaciones diferenciales ordinarias<br />

Ejercicios 2.7.1 Factor Integrante. Página 12<br />

1. .x; y/ D 1<br />

es un factor integrante.<br />

xy<br />

2. .x; y/ D sec 2 .xy/ es un factor integrante.<br />

3. .x; y/ D<br />

4. x 3 y C 1<br />

2 x2 y 2 D C.<br />

5. x 2 3xy<br />

1<br />

es un factor integrante.<br />

xy.x C 2y/<br />

7<br />

D C.<br />

y<br />

6. ye 2x C y 3 e x D C.<br />

7. 2xy C 5 arctan x D C.<br />

8. xy 3<br />

1<br />

6 y6 D C.<br />

9. e x sen y C 2y cos x D C.<br />

10. y 2 e y sen x D C.

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