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OCR (Not MEI) Friday 19th May Unofficial Mark Scheme Watch

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    Unofficial mark scheme, let me know anything you think is wrong:

    Q1: 1/3 n(n+5)(n-5)
    Q2: ±(3√5 - i √2)
    Q3i: Matrix(6, 28, -14, 7a-1)
    Q3ii: Matrix(1, 28 +3a, -9, 4+5a)
    Q4: induction
    Q5: Q = Matrix(1, 0, 0, 4) T = Matrix(1, 5, 0, 4)
    Q6: Modulus is 3√2 Argument 7/20 PI
    Q7: 0.629 and infinite sum is 71/105
    Q8: a = -24, b = 45, c = -52
    Q9 : a = 2 p = -1
    Q10: B = ±a/√(3)
 
 
 
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