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Homework Help: 2y'-(x/y)+x^3 cosy = 0 solve?

  1. Mar 10, 2013 #1
    1. The problem statement, all variables and given/known data

    Solve the follwing differential equation
    2y'-(x/y)+x^3 cosy = 0 solve?

    2. Relevant equations

    Linear Differential equation: y'+py=q
    exact differential equation: Mdx+Ndy=0

    3. The attempt at a solution

    both of the methods i have applied .... but didnt work
    later i tried it as Bernoulli Differential equation in x... but variables are not coming in

    x' + px = q form...

    kindly help me or give me hint to solve the above differential equation.
  2. jcsd
  3. Mar 10, 2013 #2


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    Staff Emeritus
    Science Advisor
    Homework Helper

    This is a non-linear ODE because of cos y. Standard linear ODE solution techniques won't work.
  4. Mar 10, 2013 #3
    Give me some hint ... I have also tried Cauchy and legendre methods as well ... But no one works here
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