does anyone know how to approximate the are and circumfrence of the region bounded by the given curves

Question

y=cos(x^2 +(100493/100000)), y=1+x-X^2

i already did the area but i need help with the circumference

Answer 1

Do follow-up with the same post whenever possible.
The answer has been posted:
http://www.jiskha.com/display.cgi?id=1297900781

Answer 2

i found it but like i understand what youre saying i just don't know how to plug it in wxmaxima is it possible if you can show me
thanks very much