Pregunta: In Exercises 3-16 find an integrating factor; that is a function of only one variable, and solve the given equation. 3. y dx - x dy = 0 4. 3c²y dx + 2.73 dy=0 5. 2y3 dx + 3y2 dy = 0 6. (5xy + 2y + 5) dor +2.c dy = 0 92 Chapter 2 Integrating Factors 7. 8. 9. (zy + x +2y + 1) dr + (x+1) dy = 0 (27xy2 + 8y?) dx +(18xy + 12xy?) dy = 0 (6xy2 + 2y) dx + (12x+y +

In Exercises 3-16 find an integrating factor; that is a function of only one variable, and solve the given equation. 3. y dx - x dy = 0 4. 3c²y dx + 2.73 dy=0 5. 2y3 dx + 3y2 dy = 0 6. (5xy + 2y + 5) dor +2.c dy = 0 92 Chapter 2 Integrating Factors 7. 8. 9. (zy + x +2y + 1) dr + (x+1) dy = 0 (27xy2 + 8y?) dx +(18xy + 12xy?) dy = 0 (6xy2 + 2y) dx + (12x+y + 6x + 3) dy = 0 y dx + y + 3xy + dy = 0 10. =) 11. 12. 13. (12xy + 24.xºy) d.: + (9.24 + 32:2y + 4y) dy = 0 (x²y + 4xy + 2y) dr + (x² + x) dy = 0 -y dr +(24 - 2) dy = 0 COS E cos y dr + (sin x cosy - sin r siny + y) dy = 0 (2xy + y2) dx + (2xy + x2 – 2z^y2 – 2xy?) dy = 0 y sin y dc + x(sin y - y cosy) dy = 0 14. 15. 16.