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maxonik [38]
3 years ago
5

F(x) = 4/x-9 g(x)=4/x + 9 find f(g(x))

Mathematics
1 answer:
Alenkinab [10]3 years ago
6 0
Hello,

f(x)= \dfrac{4}{x-9} \\

g(x)= \dfrac{4}{x+9} \\

f(g(x))=f( \dfrac{4}{x+9} )\\

= \dfrac{4}{ \dfrac{4}{x+9}-9} \\

= \dfrac{4(x+9)}{4-9x-81} \\

=- \dfrac{4x+36}{77x+9x} 



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