Asked by ABC

Find the unit vector parallel to the vector : C=12i+24j-8k.
A.9/7i+5/7j+1/7k
B.3/7i+6/7j-2/7k.
I think B is correct.
Please tell me correct option and method of finding.
Answered by Damon
first make it easier by dividing by 4
3 i + 6 j - 2 k is parallel but easier
now divide all coefs by
sqrt(9+36+4) = 7 :)

3/7 i + 6/7 j - 2/7 k
Answered by Anonymous
Yes ur ans and method both ri8
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