• 1)

    edx-c4-june12-q1
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    Part (a):

    Part (b)(i):

    Part (b)(ii):

  • 2)

    Edexcel C4 January 2011 – Q3
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    Part (a):

    Part (b):

    Part (c):

  • 3)

    Edexcel C4 June 2009 – Q3
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    Part (a):

    Part (b)(i):

    Part (b)(ii):

  • 4)

    Edexcel C4 January 2008 – Q7
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    Part (a):
    Part (b):
    Part (c):
    Part (d):