Answer:
it is up
Step-by-step explanation:
Draw a number line that shows the distance between 3 and -2 is 5
2 answers:
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The cross product of two vectors gives a third vector 
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Normalize this vector by dividing it by its norm:
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.
Normalize this vector by dividing it by its norm:
To get another vector orthogonal to the first two, you can just change the sign and use