Posted by **kally** on Saturday, February 11, 2012 at 7:24pm.

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.

- Calculus -
**Reiny**, Saturday, February 11, 2012 at 7:46pm
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???

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