Finding the smallest angle between Vectors

[ppacc]

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)

Thanks,

Pamela

 

[Dr Transport]

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.

 

[arildno]

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.