|Jan20-13, 12:05 AM||#1|
Non-exact differential equation
the problem is (x+x^4)dy+y(y^3-x^3)dx=0
well I know that this is not a separable equation, homogenous equation or an exact equation...so i try to solve it by treating it as a non exact DE by finding out the integrating factor...but the both IF come out in term of x and y which involve 2 variables where by IF must only has one variable.....
|Jan20-13, 05:08 AM||#2|
The pattern of the ODE makes think to a change of variables : X=x^3 and Y=y^3, which leads to a Riccati ODE.
|Jan27-13, 07:58 AM||#3|
thank god...u really help me very much :D :D
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