The function f f\,f is defined by
f(x)=1+ln(4x+1),x∈R,x>−0.25 f(x) = 1 + \ln(4x + 1), \quad x \in \mathbb{R}, x > -0.25 f(x)=1+ln(4x+1),x∈R,x>−0.25Find the exact value of ff(0)ff(0)ff(0)
Find an expression for f−1(x)f^{-1}(x)f−1(x)
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.