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ODE problem: 3x^2 y dx + (x^3 + 2y)dy = 0

  • Thread starter brad sue
  • Start date
  • #1
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I have two ODE with which I cannot to slove;

3x2ydx+(x3+2y)dy=0

I tried to change of variable y=v*x, but I still cannot find a way to solve it.

the second is:

(exsin(y)-2ysin(x))dx+(excos(y)+2cos(x))dx=0

here I have no idea


thank you
B
 

Answers and Replies

  • #2
quasar987
Science Advisor
Homework Helper
Gold Member
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They are exact diff equ. Have you not seen how to solve such ode's?
 
  • #3
Hurkyl
Staff Emeritus
Science Advisor
Gold Member
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19
Surely you know other techniques for solving ODE? This problem is tailor-made for one of them.
 

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