What is the domain of $f(x)=sqrt(x+1)$ ?

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Answer 1 · 2016-11-15T14:40:23

The domain is $x in[-1, +oo[$

For a square root, the doman is $>=0$

Therefore, $x+1>=0$

$=>$ $x>=-1$

Therefore the domain is $x in[-1, +oo[$

What is the domain of f(x)=sqrt(x+1)f(x)=sqrt(x+1)?