ACKNOWLEDGEMENTS
The authors and publishers would like to thank University of Cambridge International Examinations (CIE)
for their assistance and support in the preparation of this book. Exam questions from past CIE exam papers
are reproduced by permission of the University of Cambridge Local Examinations Syndicate. The University
of Cambridge Local Examinations Syndicate bears no responsibility for the example answers to questions
taken from its past question papers which are contained in this publication.
In addition we would like to thank the teachers who offered to read proofs and who gave advice and support:
Simon Bullock, Philip Kurbis, Richard Henry, Johnny Ramesar, Alan Daykin, Nigel Wheeler, Yener Balkaya,
and special thanks is due to Fran O'Connor who got us started.
The publishers wish to make it clear that acknowledging these teachers, does not imply any endorsement of
this book by any of them, and all responsibility for the content rests with the authors and publishers.IGCSE
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Y:\HAESE\IGCSE01\IG01_00\004IGCSE01_00.CDR Friday, 21 November 2008 12:18:06 PM PETER