Given the unit-speed curve α(s) = ( 4 5Cos s, 1 − Sin s, − 3 5Cos s) (|α˙ | = 1) that is parametrized in terms of arclength s. a) Find the unit Tangent vector T , b) Find the Curvature κ, c) Find the Normal vector N, d) Find the Binormal vector B, e) Find the Torsion τ of this curve.

In the diagram, points d and e are marked by drawing arcs of equal size centered at b such that the arcs intersect ba and bc. then, intersecting arcs of equal size are drawn centered at points d and e. point p is located at the intersection of these arcs. based on this construction, m , and m