Edexcel Mathematics October 2021 · Paper 2 · Question 2 · ExamRizz

ExamRizzEdexcel MathematicsMathematics

October 2021 · Paper 2 · Question 2 · 5 marks

2. The functions f and g are defined by f ( x) = 7 – 2x2 x Î  g ( x) = 3 51x x− x Î  x≠1 5 (a) State the range of f (1) (b) Find gf (1.8) (2) (c) Find g–1(x) (2) 5

Lesson: Laws of Indices