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Resolver por el metodo de variacion de parametros o por la formula general. 16. y' -2y=-6, u=3e +c. Solucion: y =3+cel 17. y'-2y=x, u=0-20 +c

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Resolver por el metodo de variacion de parametros o por la formula general. 16. y' -2y=-6, u=3e +c. Solucion: y =3+cel 17. y'-2y=x, u=0-20 +c . Solucion: y =- + cell 4 2 4 18. y'- xy=xe /, 1= + c. Solucion: y =e 2 +c 3 3 19. xy'-2x y=e", u= Inx+c. Solucion: y=e (Inx+c) 20. y'+ (cosx)y = (sec x)e- -sen.I , u = tan x+ c . Solucion: y = (tanx+c)e 21. y' - (senhx)y = xecshi , H = + c . Solucion: y = poshx + c 2 2 22. y - Solucion: y = cex -1 1+x 1+x 23. v+ (Inx) y= Inx. Solucion: y=1+ ce(1-Inx)

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