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What is the domain of the function $f(x)=\frac{x+6}{\sqrt{x^2-3x-4}}$?

 Feb 15, 2021
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The denominator x^2 - 3x - 4 can't be 0, so the domain is (-inf,-1) U (-1,4) U (4,inf).

 Feb 15, 2021

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