
To calculate: The angle and dot product of following

Answer to Problem 91RE
The dot product of vectors is
Explanation of Solution
Given information:
The vectors are given as:
Formula used:
let
then,
dot product:
angle:
where
Calculation:
Consider the vectors,
Recall that for the dot product of vectors,
The value of
Therefore, the dot product is given by,
Recall that for the angle betweenthe vectors,
where
Therefore, the angle between the vectors are given by,
Thus, the dot product of vectors is
Chapter 9 Solutions
Precalculus
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