The function f f\,f is defined by
f(x)=x2−10x+30,x∈R f(x) = x^2 - 10x + 30, \quad x \in \mathbb{R} f(x)=x2−10x+30,x∈RFind the range of f(x)f(x)f(x)
Explain why the function f(x)f(x)f(x) does not have an inverse
Practise Edexcel A Level Maths 2.2 Functions and Mappings with exam-style questions for A Level Maths. 6 questions, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.