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Which vector is parallel to (1, 2, 3) in the same direction?
A(-1, 2, 3)
B(2, 4, 6)
C(2, 4, 5)
D(3, 2, 1)
Answer & Solution
Correct answer: B. (2, 4, 6)
(2, 4, 6) is exactly 2 times (1, 2, 3).
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