Multiple Choice
Two vectors 
And 
Are given by 
And 
) The scalar product of 
And a third vector 
Is −16.The scalar product of 
And 
Is +18.The z component of 
Is 0.What is the magnitude of 
?
A) 7.8
B) 6.4
C) 3.6
D) 5.0
E) 4.8
Correct Answer:
Verified
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