0580 P23 - Jun 2012 - Q18 - 4 marks
16043
O is the origin of parallelogram OPRQ. \(\overrightarrow{OP}=\mathbf p,\ \overrightarrow{OQ}=\mathbf q\). X is on PR, with PX = 2XR.
(a) Find \(\overrightarrow{QX}\). [2]
(b) Find the position vector of M, the midpoint of QX. [2]