The points A A\,A and B B\,B have position vectors (−231)\begin{pmatrix} -2 \\ 3 \\ 1 \end{pmatrix}−231 and (171)\begin{pmatrix} 1 \\ 7 \\ 1 \end{pmatrix}171 respectively.
Find the exact length 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.