CSEC Mathematics · 2021 · Paper 2 · Question 10(c)(ii)

The diagram shows triangle OAB in which \vec{OA} = \mathbf{r} and \vec{OB} = \mathbf{s}. In addition, E is the midpoint of CD, OC = \frac{3}{4}OA and AD = \frac{2}{3}AB. Write in terms of \mathbf{r} and \mathbf{s}, in the simplest form, an expression for:

\vec{OE}

This question uses a figure or table from the paper — you'll see it when you practise.