Igcse Model Questions Vol1 2019 Mathematics Question 26
Practice objective / multiple choice question 26 from the 2019 Igcse Model Questions Vol1 Mathematics examination.
The function \(f\) is defined by \(f(x)=\dfrac{a x + b}{x-2}\) for all real \(x\neq 2\). Find all real values of the parameters \(a\) and \(b\) for which \(f\) is its own inverse; that is, \(f(f(x)) = x\) for every admissible \(x\).
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This is Igcse Model Questions Vol1 2019 Mathematics Question 26. It is one of the objective questions from the 2019 Igcse Model Questions Vol1 Mathematics examination.
Difficulty level: Hard .
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