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How do you find the unit vector having the same direction as vector #v = –12j#?

1 Answer

Jul 19, 2016

#hat(v) = -vec(j)#

Explanation:

#hat(v) = (vec(v))/(|vec(v)|)#

#|vec(v)| = sqrt((-12)^2) = 12# (this is the norm or length of the vector so we take the positive root.

#hat(v) = (-12vec(j))/12 = -vec(j)#

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