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1.10.7 Problem solving using vectors

1.10.7 Problem solving using vectors

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Question 20

Relative to a fixed origin OOO, the vertex D D\,D of a triangular structure has position vector (4i−j+5k)(4\mathbf{i} - \mathbf{j} + 5\mathbf{k})(4i−j+5k), vertex E E\,E has position vector (5i+2j+9k)(5\mathbf{i} + 2\mathbf{j} + 9\mathbf{k})(5i+2j+9k), and vertex F F\,F has position vector (i+3j+4k)(\mathbf{i} + 3\mathbf{j} + 4\mathbf{k})(i+3j+4k).

a.

Find the vector EF⃗\vec{EF}EF.

[2]
b.

Show that the quadrilateral ODEF ODEF\,ODEF is a parallelogram, giving reasons for your answer.

[3]
Markscheme

1.10.7 Problem solving using vectors Questions

  1. A Level
  2. /Maths
  3. /1.10.7 Problem solving using vectors

65 exam-style questions on OCR A Level Maths 1.10.7 Problem solving using vectors. Each one has a worked solution and a mark scheme showing where the marks go.

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