Solving inexact differential equation

[Hawkingo]

I tried to solve this differential equation by converting into an exact differential equation.So I converted into an exact differential equation but couldn't reach the end.so help please.

[NortonH]

Your best bet would be to get hold of Abramowitz and Stegun and read it cover to cover.

That should not take you more than half a day if you are paying attention and do not allow yourself to be distracted.

eg Do not play music or have the TV on while you are doing it. It seems odd that I have to say this but the fact is that these days that is exactly what millennials do when they are supposed to be studying. Once you have done that I and are reasonably confident that you grasped it then the above problem will be pretty easy.

I hope this helps.