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