# Math Help - arc length of x= y^4/4 + 1/8y^2

1. ## arc length of x= y^4/4 + 1/8y^2

arc length along the curve x= y^4/4 + 1/8y^2 from y=1 to y =2

$L = \int_1^2 \sqrt{1 + (\mbox{derivative})^2} \mbox{ dy}$