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O-LevelAdditional MathematicsLogarithmic and exponential functions4037/11 · May/June 2011 · Q23 Marks

Express lga + 3lgb – 3 as a single logarithm.

  1. (a)Express lga + 3lgb – 3 as a single logarithm.[3]

Mark scheme

Marking points from the official mark scheme (May/June 2011). The mark or mark type is shown in brackets.

  1. [1] B1 for lgab³
  2. [1] B1 for lg1000
  3. [1] B1 lg(ab³/1000)

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About this question

Topic
Logarithmic and exponential functions, O-Level Additional Mathematics (syllabus 4037). Structured question, 3 marks.
Source
O-Level Additional Mathematics, May/June 2011 Paper 1 Variant 1, question 2.

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