Question 3 This question is about torsion of space curves. For a space curve parametrized by 76), > . . recall that we use 8 to denote the arc length function7 and ?, W, B are respectively the unit tangent vector, normal vector, and binorrnal vector. The torsion is dened to be > . Figure out the vector functions ?, , B for the following space curves7 and calculate their curvature and torsion for t : 0. (1) 705) :