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Find the domain of f(x)=2x/x^2+9
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Find the domain of f(x)=2x/x^2+9

User Toscanelli
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f(x)= (2x)/(x^2+9) \\ \\ x^2+9=0 \\ x^2=-9 \\ x=i √(3),-i √(3) \\ \\ domain:(-\infty,\infty)
User Amance
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7 votes
The domain is (infinity, infinity)
User Dobby Dimov
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