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_aqing

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dy/dx=(a*y^4+b*x^2*y)/(c*y^3*x+d*x^3)
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_aqing(½ð±Ò+1): 2012-02-14 15:26:16
_aqing(½ð±Ò+1): ¡ïÓаïÖú 2012-02-18 08:31:12
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odel := diff(y(x), x) = (a*y(x)^4+b*x^2*y(x))/(c*y(x)^3*x+d*x^3)
dsolve(odel, y(x))
2Â¥2012-01-05 15:13:10
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_aqing(½ð±Ò+1): ¡ïÓаïÖú 2012-02-13 11:19:30
_aqing(½ð±Ò+2): ¡ïÓаïÖú 2012-02-29 20:29:27
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DSolve[y'[x] == (a *(y[x])^4 + b*x^2*y[x])/(c*(y[x])^3*x + d*x^3),
y[x], x]
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Solve[-((3 d Log[3 b y[x] - 2 d y[x]])/(3 b - 2 d)) + (
   a (9 b - 6 d) Log[x] +
    3 (-b c + a d) Log[
      3 b x^2 - 2 d x^2 + (3 a - 2 c) y[x]^3])/((3 a - 2 c) (3 b -
      2 d)) == C[1], y[x]]
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3Â¥2012-01-05 23:16:45
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