A good answer might be:

No--the vectors would point in opposite directions, but their dot product would be the same.

End of the Chapter

This chapter did little but work with the formula for the cosine of the angle between two vectors. Only a few topics may need reviewing:

The formula for the cosine of the angle between unit vectors.
List of steps to take in applying it to non-unit vectors.
Using vectors for problems in solid geometry.

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