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$4\cdot y^{3}+7\cdot x\cdot\sin(x)+4\cdot x^{4}-\left(16\cdot\cos(y)-7\cdot x-\frac{7}{4}\cdot y^{2}\right)\cdot y'=-e^{y-x}+\sinh(y)$

I tried a lot to solve this differential equation. I think it must have a strange integrator factor.

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    $\begingroup$ 1. Please write formulas in MathJax. $$$$ 2. Please show us your attempts to solve this task so that we can really help you. $\endgroup$ Oct 24, 2022 at 22:12
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    $\begingroup$ Since you tried "a lot", please include your attempts to solve this. $\endgroup$
    – amWhy
    Oct 24, 2022 at 22:14
  • $\begingroup$ Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking. $\endgroup$
    – Community Bot
    Oct 24, 2022 at 22:15
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    $\begingroup$ May I ask what is the origin of this rather bizarre equation? $\endgroup$ Oct 24, 2022 at 23:43
  • $\begingroup$ This nonlinear first order differential equation was a score question of Amir Kabir University of Iran. There were 7 questions and I solved 6 of them. This question is not complete. I think it can be solved by finding an integrator $\endgroup$
    – Yaser
    Oct 25, 2022 at 0:51

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