Informe de circuitos
Enviado por Gaturrosmolina • 10 de Mayo de 2019 • Informe • 1.234 Palabras (5 Páginas) • 107 Visitas
1. Resuelva el problema de valor inicial
y’ = ; y(1) = - 1[pic 1]
y’ =2 - )2 u = [pic 2][pic 3][pic 4]
f(u)= 2u – u2
[pic 5]
[pic 6]
[pic 7]
[pic 8]
ln (u) – ln (1 – u ) = ln (x) + ln (c)
ln ( = ln (c)[pic 9]
[pic 10]
[pic 11]
[pic 12]
Utilizando
y(1) = -1 y = - 1
x = 1
= C[pic 13]
[pic 14]
2. Resuelva la ecuación diferencial[pic 15][pic 16]
M N
(1 +3x sen y) dx –(x2 cos y) dy = 0
= 3x cos y ≠ = -2 x cos y , u = e [pic 17][pic 18][pic 19]
ax = -5 , u = e e e = x-5[pic 20][pic 21][pic 22][pic 23]
(x-5 + 3x x-5 seny) dx – x2x-5 cos y dy = 0
(x-5 + 3x-4 seny) dx – x-3 cos y dy = 0
f1 = + seny ) ax f2= cos y ay)[pic 24][pic 25][pic 26]
f1 = - - f2=[pic 27][pic 28][pic 29]
f (x , y ) = - sen y - = C[pic 30][pic 31]
-4 sen y – x-1 =4 x3C
3. Resolver el problema de valor inicial
(x3y + y) dx – ( x2 ln2 y + 4x2 )dy = 0 ; y (1) = 1
Y ( x3 +1 ) dx = x2( ln2 y + 4 ) dy ( 1 , 1 )
() dx = ( ) dy[pic 32][pic 33]
dx [pic 34][pic 35][pic 36]
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