question_answer

\[f(x)=\sqrt{\frac{(x+1)(x-3)}{(x-2)}}\] is a real valued function in the domain

A)  \[(-\,\infty ,-1]\,\cup [3,\infty ]\]

B)         \[(-\,\infty ,-1]\,\cup [2,3]\]

C)  \[[-\,1,2]\,\cup [3,\infty ]\]

D)  \[[-\,1,2]\,\cup [3,6]\]