Find functions f and g so that f ? g = H.H(x) =   

A. f(x) =  - 9; g(x) = 
B. f(x) = ; g(x) =  - 9
C. f(x) = x2 - 9; g(x) = 
D. f(x) = , g(x) = x2 - 9

Answer: D

Mathematics

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