Thread: Need help getting started...

Hey guys I hope you can help me out with these two.



I think the first one is separable but I can't see how to isolate the variables. It's not exact nor can it be made exact by an integrating factor, at least I don't think it can be.

The second one I need to get in terms of y/x (dy/dx = f(y/x)) to use the z substitution method. That root xy has got me stuck.

Any help is much appreciated! Thanks!

-Tony

Your link to the questions is not clear.

Recall

If you have [IMG] code on, it will be.

But here is the direct link.
http://i551.photobucket.com/albums/i...Untitled-6.png

I got the second one now, thank you! I'm still unsure about the first one.

-Tony

Originally Posted by Xplorer

Hey guys I hope you can help me out with these two.



I think the first one is separable but I can't see how to isolate the variables. It's not exact nor can it be made exact by an integrating factor, at least I don't think it can be.

The second one I need to get in terms of y/x (dy/dx = f(y/x)) to use the z substitution method. That root xy has got me stuck.

Any help is much appreciated! Thanks!

-Tony

The right hand side of your first one can be written , it should now be clear how to continue.

Originally Posted by mr fantastic

The right hand side of your first one can be written , it should now be clear how to continue.

Thats the ticket!

Thank You!!

-Tony