The points A A\,A and B B\,B have position vectors (−142)\begin{pmatrix} -1 \\ 4 \\ 2 \end{pmatrix}−142 and (3−36)\begin{pmatrix} 3 \\ -3 \\ 6 \end{pmatrix}3−36 respectively.
Find the position vector of the midpoint of ABABAB.
309 exam-style questions on Edexcel A Level Maths Vectors, covering 12.1 3D Coordinates, 12.2 Vectors in 3D, 12.3 Solving Geometric Problems, and 12.4 Application to Mechanics. Each one has a worked solution and a mark scheme showing where the marks go.