In triangle PQRPQRPQR, PQ⃗=3i−4j+12k\vec{PQ} = 3\mathbf{i} - 4\mathbf{j} + 12\mathbf{k}PQ=3i−4j+12k, PR⃗=5i+2j−k\vec{PR} = 5\mathbf{i} + 2\mathbf{j} - \mathbf{k}PR=5i+2j−k
Find the vector QR⃗\vec{QR}QR
Find the length of the line PQPQPQ
Practise Edexcel A Level Maths Vectors with exam-style questions for A Level Maths. 100 questions covering 12.1 3D Coordinates, 12.2 Vectors in 3D, 12.3 Solving Geometric Problems, and 12.4 Application to Mechanics, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.