Introduction to unit tangent, unit normal, and unit binormal vectors (Calculus 3 basics)

Here's a quick introduction to unit tangent, unit normal, and unit binormal vectors that you need to know for your Calculus 3 class! Subscribe to ‪@bprpcalculusbasics‬ for more calculus tutorials!
Proof that if a vector has constant length, then it's orthogonal to r': • If a vector has consta...
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