Edexcel Mathematics Sample paper · Paper 2 · Question 4 · ExamRizz

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Sample paper · Paper 2 · Question 4 · 5 marks

4. Given f (x) = ex, x   g (x) = 3lnx, x > 0, x   (a) find an expression for gf(x), simplifying your answer. (2) (b) Show that there is only one real value of x for which gf(x) = fg(x) (3)

Lesson: Laws of Indices