9. If f(x) = 1+x A. (gof)(x) = and g(x)=√x-1, then which of the following is true? 2x-1 1+X C. The domain of (gof)(x) = {x|x ≥ 1}
Mathématiques
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Question
9. If f(x) = 1+x A. (gof)(x) = and g(x)=√x-1, then which of the following is true? 2x-1 1+X C. The domain of (gof)(x) = {x|x ≥ 1}