Normalize Vectors
The previous diagram now shows each vector after it has been normalized. (Remember, this means creating a unit vector in the same direction as the original vector).
Normalize the vectors (create unit vectors in the same directions).
The previous diagram now shows each vector after it has been normalized. (Remember, this means creating a unit vector in the same direction as the original vector).
Now which dot product is larger? au · bu , or au · cu ?
Hint: remember that u · v = |u||v| cos θ . But here both vectors have length 1.0.