IGCSE Additional Mathematics Practice Questions - Cambridge IGCSE Additional Mathematics (0606) Exam

The function f(x) = (x - 1)/(x + 2) is defined for x not equal to -2. Find f^-1(x).

(2x + 1)/(1 - x) (x + 2)/(x - 1) (2x - 1)/(1 - x) (1 - x)/(2x + 1)

Correct Answer:

(2x + 1)/(1 - x)

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