posted by kally .
u, v, w are UNIT VECTORS. the angle between vector v and w is 35 degrees.
find (v+w-3v). NOTE: vector u and w are on opposite sides of vector v.
Something is not right in this question.
Are all 3 vectors coplanar?
Other than u is a unit vector, we have no other information about u.
besides that, ....
(v+w - 3v) would simply be w - 2v
How does u enter the picture???