Hi,

Solve with

IC's:

not going to list the BC's here.

So, I start by letting

so

so we have and

Now I let

so (divide by )

but I'm not too sure how correct this is because if I carry on I get

......(1)

Now Im not sure how to proceed from here....I think I need to somehow add another two separation constants....but I'm not sure how to exactly...

when I try.... I might get something like

so I end up with .

Now the answer in the text book says that I should end up with the three equations

, , and

But I can't see how to get from ....(1)...to the three equations above. Can anyone please help me out?