SOLUTION: Find the magnitude of the vector 〈1, −4, 2〉. What is the unit vector?

Question 1136323: Find the magnitude of the vector 〈1, −4, 2〉. What is the unit vector?
Found 2 solutions by Alan3354, greenestamps:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Find the magnitude of the vector 〈1,−4,2).
Mag =
===============
What is the unit vector?
It'a a vector of length 1.
Answer by greenestamps(13200) (Show Source): You can put this solution on YOUR website!

The magnitude is

If you mean the unit vector IN THAT DIRECTION, it is

(1/sqrt(21), -4/sqrt(21), 2/sqrt(21))
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