[SOLVED] The error function and incomplete gamma function
I think I'm pretty close to getting this but can't quite figure out what do next!
From earlier in the question...
Show that erf(x) can be expressed in terms of the incomplete gamma function, and that the above asymptotic expansion agrees with the result obtained in Problem 6. [The formula (**) for integer n may be useful.]
So I think I have to show the relation... (***) as that's the relation I've seen elsewhere.
The result obtained in question 6 was...
Right so intro done!
Now what I've done...
(This step seems to be showing that which corresponds to (***))
But I'm stuck now. I don't even know if what I've done so far is right to be honest... Any help please!