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1.11 Vectors

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Question 80

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

Find ∣a∣|\mathbf{a}|∣a∣.

Circle your answer.

A

777

B

555

C

252525

D

7\sqrt{7}7​

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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