3) Sketch a graph of the helix r(t) = (t, 2 sin(nt) , -3 cos(nt)), listing the rotation direction, period, spacing, radius or major/minor axes, and starting point. What is the curvature of this function when t = 0? Y' (t ) = 2 + ( - 2 cos( Tit ) + (# 3 5init ) * (1+ 4 cos (Tit ) + 9 sinnit" : cos(x) + sin (x) = Being sickAREA + 4 +5 sinnit 15+ 5 sinnit = THI = r(t ) t =0 17'(+)1 = cos ( nit), 3sin(Tit J