Edexcel Mathematics June 2022 · Paper 2 · Question 10 · ExamRizz

ExamRizzEdexcel MathematicsMathematics

June 2022 · Paper 2 · Question 10 · 8 marks

10. The function f is defined by f(x) = 85 23x x+ + x > −3 2 (a) Find f−132   (2) (b) Show that f(x) = A + B x23+ where A and B are constants to be found. (2) The function g is defined by g(x) = 16 − x2 0  x  4 (c) State the range of g−1 (1) (d) Find the range of f g−1 (3) 25 26 27

Lesson: Laws of Indices