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4 marksBinary Operations

CSEC Mathematics · May/June 2007 · Paper 2 · Question 2(a)

A binary operation is defined as a * b = ab - b/a.

Evaluate 4 * 8.

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Other parts of this question

  1. 2(a)(ii)Evaluate 2 * (4 * 8).[1 mark]
  2. 2(b)Simplify, expressing your answer in its simplest form: (5p / 3q) ÷ (4p² / 9).[2 marks]
  3. 2(c)Write two equations in a and b to represent the information above.[5 marks]
  4. 2(c)(ii)Calculate the values of a and b.[1 mark]

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