Example 4: Tangent Vector is Orthogonal to Vector of Constant Length
I show that the tangent vector is orthogonal or perpendicular to a vector of constant length. Geometrically this means that the curve is on the surface of a sphere.

Example 4: Tangent Vector is Orthogonal to Vector of Constant Length
I show that the tangent vector is orthogonal or perpendicular to a vector of constant length. Geometrically this means that the curve is on the surface of a sphere.
