Find the unit vector in the opposite direction of the follow

Find the unit vector in the opposite direction of the following. Do not rationalize the denominator if warranted. U rightarrow = (3, -1, 2)

Solution

the vector opposite to (a,b,c) is ?

The (a.b.c) vector can be written as (ai +bj +ck) , where i,j, and k are axis in 3d format.

Hence, the vector opposite to this is - (ai +bj +ck)

Hence, vector opposite to (3,-1,2) is (-3,1,-2). When you add them up you will get 0.