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1.11 Vectors

1.11 Vectors

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Question 54

It is given that a=4i−3j\mathbf{a} = 4\mathbf{i} - 3\mathbf{j}a=4i−3j.

a.

Find ∣a∣|\mathbf{a}|∣a∣.

[1]
b.

Find the angle that a\mathbf{a}a makes with the positive xxx-direction, giving your answer to 1 decimal place.

[2]
Markscheme

1.11 Vectors Questions

  1. A Level
  2. /Maths
  3. /1.11 Vectors

168 exam-style questions on OCR (MEI) A Level Maths 1.11 Vectors, covering 1.11.1 Language of vectors in two dimensions, 1.11.2 Add, subtract and scale vectors, 1.11.3 Magnitude and direction of a vector, 1.11.4 Position vectors, 1.11.5 Distance between points by position vectors, 1.11.6 Vectors to solve problems, 1.11.7 Language of vectors in three dimensions (A-level only), and 1.11 Vectors. Each one has a worked solution and a mark scheme showing where the marks go.

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