Find functions f and g so that f ? g = H.H(x) = 
A.
f(x) =  ; | g(x) = x2 - 4 |
B.
f(x) =  ; | g(x) = - 1/4 |
C.
| f(x) = x2 - 4; | g(x) =  |
D.
f(x) =  ; | g(x) = x - 4 |
Answer: A
Mathematics
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