Watson's lemma and integral expansion

Watson’s lemma and integral expansion

Given the integral: $$I(s)=\int_{-a}^a e^{s cos(t)}dt$$ is it possible to find an expansion of $I(s)$ using the Watson's lemma?

Thanks in advance.

Yemon Choi
8,465●1●19●45

asked Feb 14 2012 at 12:05

This is not in the right form for Watson's lemma, but then, this looks a lot like homework, voting to close. – Igor Rivin Feb 14 2012 at 18:35