For f(x)= x/x+1 and g(x)=9/x find
1. (f o g)(x)
2. domain of f o g
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1. (fog)(x) = (9/x) / (9/x + 1) = 9 / x+9
2. the domain is all x except x = -9
Oh, let me add one more thing. x also cannot be ZERO because the original equation has x in the denominator.
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