Mathematics for IGCSE & O level - Functions (Section 1 - No. 26) | ExamPlay

Mathematics for IGCSE & O level - Functions (Section 1 - No. 26)

If g(x) = x - 2, what is g^-1(x)?

x+2

x-2

2-x

1/(x-2)

解释

x = y-2, y = x+2

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