Given that ∣ki−4j+8k∣=12|k\mathbf{i} - 4\mathbf{j} + 8\mathbf{k}| = 12∣ki−4j+8k∣=12
Find the two possible values of kkk
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.