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Question 175

Given that ∣3i+xj+2k∣=k|3\mathbf{i} + x\mathbf{j} + 2\mathbf{k}| = k∣3i+xj+2k∣=k, where k>13k > \sqrt{13}k>13​

Find the two possible values of xxx, in terms of kkk

[3]
Markscheme

Vectors Questions

  1. A Level
  2. /Maths
  3. /Vectors

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.

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