Mathematics for IGCSE & O level - Functions (Section 1 - No. 43) | ExamPlay

Mathematics for IGCSE & O level - Functions (Section 1 - No. 43)

Given the functions f(x) = x + 1 and g(x) = x^2, what is g(f(2))?

3

9

5

4

解释

f(2) = 2 + 1 = 3; g(3) = 3^2 = 9

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