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What is the unit vector along (3, 4)?
A(1/3, 1/4)
B(4/5, 3/5)
C(3, 4)
D(3/5, 4/5)
Answer & Solution
Correct answer: D. (3/5, 4/5)
Dividing (3, 4) by its length 5 gives (3/5, 4/5).
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