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1 markPaper 1 · Multiple choiceThe Binomial Theorem

CAPE Pure Mathematics Unit 2 · May/June 2016 · Paper 1 · Question Q27

If the coefficient of x^3 in the expression of (6 - ax)^9 is -84, then the value of a is

  1. (A)\frac{1}{36}
  2. (B)-\frac{1}{36}
  3. (C)36
  4. (D)-36

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