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Homework Help: Finding the smallest angle between Vectors

  1. Sep 15, 2004 #1
    Vectors Angles

    How do you find the smallest angle between vectors? This one is tricky because 1 vector and 3 values and the other has 2.

    A (2i+j+3k) and B (-2j+2k)


    Last edited: Sep 15, 2004
  2. jcsd
  3. Sep 15, 2004 #2

    Dr Transport

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    It doesn't matter, the dot product is still the same. think of the 2nd vector as (0i-2j+2k) and compute the cosine between the vectors.
  4. Sep 16, 2004 #3


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    Dearly Missed

    In addition, there is no smallest angle between two vectors ; there can be only one angle (given through the dot product).
    "Smallest angle" is a poor term since it almost implies that there exist other angles.
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