The points C C\,C and D D\,D have position vectors (4−12)\begin{pmatrix} 4 \\ -1 \\ 2 \end{pmatrix}4−12 and (035)\begin{pmatrix} 0 \\ \mathrm{3} \\ 5 \end{pmatrix}035 respectively.
Find the exact length of CDCDCD.
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.