Agricultural Engineering > GATE 2017 > Vectors
Direction cosines of the vector 3i - 2j + 6k are
A
A. 3/7, -2/7, 6/7
B
B. -3/7, 2/7, -6/7
C
C. -7/3, 7/2, -7/6
D
D. 7/3, -7/2, 7/6

Correct : a

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