Question

which is the domain of the following function

Answer 1

\[\sqrt{\frac{ x+1 }{ x-2 }}\]

Answer 2

\[( -\infty,-1] \cup (2,\infty) \]
or
\[( -\infty,-1] \cup [2,\infty)\]

Answer 3

HINT: because the radicand is a rational expression, you can exclude x=2...