Problems with intergrate



Hi,

I try to integrate a function:

integrate(e^(2*x)*cos(1+e^(2*x)), x);

I calculated it on paper and get:

=1/2 * sin(1+e^(2x))+C

I think this should be the correct. If not blame me!

But maxima calculates this:

sin(e^(2*x)+1)/(2*log(e))

It's nearly the same. but why log(e)? Could you explain how maxima get
log(e) from this intergral?

regards
Andreas