The function g g\,g is defined by
g(x)=x2+6x−2,x∈R g(x) = x^2 + 6x - 2, \quad x \in \mathbb{R} g(x)=x2+6x−2,x∈RFind the range of g(x)g(x)g(x)
Explain why the function g(x)g(x)g(x) does not have an inverse
Practise Edexcel A Level Maths Functions and Graphs with exam-style questions for A Level Maths. 100 questions covering 2.1 The Modulus Function, 2.2 Functions and Mappings, 2.3 Composite Functions, 2.4 Inverse Functions, 2.5 y=|f(x)| and y=f(|x|), 2.6 Combining Transformations, and 2.7 Solving Modulus Problems, 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.