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Vectors

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Question 26

In triangle DEFDEFDEF, DE⃗=1i−2j+2k\vec{DE} = 1\mathbf{i} - 2\mathbf{j} + 2\mathbf{k}DE=1i−2j+2k, DF⃗=3i+4j−k\vec{DF} = 3\mathbf{i} + 4\mathbf{j} - \mathbf{k}DF=3i+4j−k

a.

Find the vector EF⃗\vec{EF}EF

[3]
b.

Find the length of the line DEDEDE

[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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