Recent content by chwala

  1. chwala

    Solve this problem that involves induction

    @Mark i re-uploaded, i too could not see the highlighted part :biggrin:
  2. chwala

    Solve the given differential equation

    Thanks for the thoughtful input — actually, I’ve taken this as a personal challenge! I’ll be applying the Runge-Kutta method to this problem and working through it manually as far as possible. I’m also committed to generating more of these hybrid-style problems that push the boundaries of how we...
  3. chwala

    Solve the given differential equation

    Ok, i just came up with this ode. How does one go about to solve it? My attempt Let ##M(x,y) =(2xy+\cos y+\dfrac{2y}{x}-\sin x)## and ##N(x,y) = (x^2-y\sin y+1)## ##\dfrac{\partial M}{\partial y}= 2x - \sin y + \dfrac{2}{x}## and ##\dfrac{\partial N}{\partial x}= 2x## Not exact.
  4. chwala

    Solve the first order linear differential equation

    The formal solution to me does not look complete, but i fully understand the view of mathematicians coming to that conclusion.
  5. chwala

    Solve the first order linear differential equation

    That is exactly, where my problem is. Somehow this should be integrable... hence the reason of the post.
  6. chwala

    Solve the first order linear differential equation

    OK let me be specific, how do you integrate $$ \dfrac{1}{x^x e^{-x}}\int 6x. x^x. e^{-x} dx $$
  7. chwala

    Solve the first order linear differential equation

    ...explicitly post here your integrating factor... @fresh_42 I would like help from this step, otherwise you may want to close this thread. In post 1, I left out the 'e' typo error. Thanks.
  8. chwala

    Solve the first order linear differential equation

    ##e^{x \ln x - x} = x^x e^{-x}##.
  9. chwala

    Solve the first order linear differential equation

    I think we’re just going round in circles without any meaningful progress. In my mind, I’m very clear on where I had reached and where I am stuck. Getting the integrating factor is actually the least of my problems. I already know how to form the integrating factor — and yes, I agree it’s a bit...
  10. chwala

    Solve the first order linear differential equation

    Where was it wrong? The missing of the constant ##C##? My understanding is that contant ##C##is embedded on the integral itself as the integrating factor will subsequently multiply out each term of the differential equation.
  11. chwala

    Solve the first order linear differential equation

    I thought i already mentioned the last step where I reached, ie finding the I.f ...my problem from that point is solely on how to use the integrating factor to this specifically arrive at the required solution.
  12. chwala

    Solve the first order linear differential equation

    Wait, I thought when using integrating factor 'c' is silent or rather not considered... each term ##y', P(x) ## and ##Q(x)## will be multiplied by the integrating factor, with no consideration to your c.
  13. chwala

    Solve the first order linear differential equation

    I seek the steps to final solution specifically to this problem, that's the motivation behind the post. Of course, I am conversant with how to solve basic first order differential equations.
  14. chwala

    Solve the first order linear differential equation

    I know that this is not elementary, but like thinking out of the box, how do we solve such... or which concepts do we draw from to reach somewhere... I was able to understand up to this part, Integrating factor = ##e^{\int \ln x} = x\ln x-x##
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