Edexcel Paper 2 2020 October — Question 13

Exam BoardEdexcel
ModulePaper 2 (Paper 2)
Year2020
SessionOctober
TopicProduct & Quotient Rules

  1. The function \(g\) is defined by
$$g ( x ) = \frac { 3 \ln ( x ) - 7 } { \ln ( x ) - 2 } \quad x > 0 \quad x \neq k$$ where \(k\) is a constant.
  1. Deduce the value of \(k\).
  2. Prove that $$\mathrm { g } ^ { \prime } ( x ) > 0$$ for all values of \(x\) in the domain of g .
  3. Find the range of values of \(a\) for which $$g ( a ) > 0$$