• 1)

    OCR C4 June 2013 - Q1
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  • 2)

    Edexcel C4 January 2013 – Q3
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  • 3)

    Edexcel C4 June 2009 - Q3a
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    Part (a):

  • 4)

    Edexcel C4 January 2009 - Q3a
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    Part (a):

  • 5)

    Edexcel C4 June 2008 - Q7a
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    Part (a):

  • 6)

    Edexcel C4 January 2007 - Q4a
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    Part (a):