Let f(t) be a function (scalar) vector function write f(t) as r(t). f(x)=cosx at 2=10. (0) = (0,1,10) Z * @f(t)=e+ at 2=-1 2 a 3 f(x)=10x-1 Parametrize rit) using arclength t s(t) = Siriculi du at z=0 4) r(t) = (t + )