Specialist Mathematics · Unit 1 · Vectors in the plane · Representing vectors in the plane by directed line segments

Use the triangle rule to represent the resultant vector from the sum and difference of two vectors.

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Question 1

Consider vectors **a** = 3**i** + 4**j** and **b** = 5**i** − 2**j**. (a) Use the triangle rule to determine **a** + **b**. (1 mark) (b) Use the triangle rule to determine **a** − **b**. (1 mark) (c) Determine the magnitude of **a** − **b**, correct to two decimal places. (1 mark)

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