1.

The unit vector in the direction of vector A = 2 i^ -2j^ + k^ is_______________?

A. 2i^ – 2j^ + k^
B. (2i^ – 2j^ +k^)/9
C. (2i^ – 2j^ +k^)/3
D. (2i^ – 2j^ +k^)/5
Answer» D. (2i^ – 2j^ +k^)/5


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