Question

a parametric curve x=t-sin t
y=1-cos t
find the length of the curve between t=0 and t=2*pi
(you will need that cos^2 t+sin^2 t=1 and 1-cos t=2 sin^2 (t/2)
a parametric curve x=t-sin t
y=1-cos t
find the length of the curve between t=0 and t=2*pi
(you will need that cos^2 t+sin^2 t=1 and 1-cos t=2 sin^2 (t/2)
@Mathematics