The diagram displays the points $O$ and $C$, along with the vectors $\mathbf{p}$ and $\mathbf{q}$.
(a)[1]
With $\vec{OA} = 2\mathbf{p}$ given, place and label point $A$ on the diagram.
(b)[1]
With $\vec{OB} = \mathbf{p} - 2\mathbf{q}$ given, place and label point $B$ on the diagram.
(c)[2]
State $\vec{OC}$ in terms of $\mathbf{p}$ and $\mathbf{q}$.
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