Vectors
posted by C .
In triangle OAB, OA = 3i + 4k and
OB = i + 2j  2k. Find OP, where P is the point where the bisector of Angle AOB intersects AB.
Answer is 7i/4 + 5j/4 + k/4
Don't use the matrix method as I haven't learnt it yet and please show working. Thx a lot.

This is discussed here:
http://math.stackexchange.com/questions/1408917/findingvectorformofananglebisectorinatriangle