Wrote a short piece explaining how you can discover the vertices of a polygon in Argand space through the use of vectors:
http://www.a-levelmaths.com/summaryhandouts.htm (see no. 15 under supplements)
Hope this is useful. Peace.
Use of vectors in complex numbers
Is there life after O/A-Levels? Definitely! How well a person does in tertiary education is correlated with job opportunities open to the person. Discuss issues pertaining to nstitutes of higher learning here.