Hey guys,

This problem about vectors is giving me some trouble. Help would be greatly appreciated.

Let v= <2,3,2> and w= <4,6,5>

a) Find a unit vector that is orthogonal to both v and w.

b) Find the angle formed by vectorsvxwandwxv

c) If u= <-1,4,8> find the cosine of the angle formed by vectorsuandvxw

Thanks so much!!