2025 IGCSE 0580 May/June P23 Q12

2025 IGCSE 0580 May/June P23 Q12

5 marks
  1. \(\mathbf v=\begin{pmatrix}2\\-3\end{pmatrix}\)
    Find \(5\mathbf v\).[1]
  2. \(H\) is the point \((-3,8)\) and \(K\) is the point \((-4,0)\).
    \(\overrightarrow{HJ}=\begin{pmatrix}7\\-2\end{pmatrix}\)
    Find \(|\overrightarrow{JK}|\).[4]

Solution:

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Answer:(a) \(\begin{pmatrix}10\\-15\end{pmatrix}\). (b) \(10\).

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