Question

unit tangent vector formula​

Answer 1

Answer:

r(t)=tˆi+etˆj−3t2ˆk.

Step-by-step explanation:

We can strip a vector of its magnitude by dividing by its magnitude. Let r(t) be a differentiable vector valued function and v(t)=r′(t) be the velocity vector. Then we define the unit tangent vector by as the unit vector in the direction of the velocity vector. r(t)=tˆi+etˆj−3t2ˆk.