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What is the direction of v   =   ( -3, 2, 4)T ?

Answer:

Calculate the unit vector:

  1. | v |2   =   9 + 4 + 16   =   29
  2. vu   =   v / √29

Right Angles

vectors at right angles

There is an interesting result when the directions of two vectors are 90° apart. For example, oriented at along the x axis and along the y axis.


QUESTION 7:

What is the dot product of r   =   (6, 0)T with s   =   (0, 8)T?

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