I have no idea how to start. Any hints?
Thanks in advance.
I'd try ILSerena's method, it is much easier.I've already tried finding a function suitable for Riemann but, unfortunately, i couldn't come up with a result. I'll keep trying if you say it can be solved using riemann sums:).
@serena what value did you come up with by using taylor series?
No :), actually i'm preparing for an important math exam and i'm just practicing. I wanted to know your result and try with taylor series.(You're not doing some online homework test for extra credit, for which you only need the answer I hope?)