Question

Para valores de X a função f(x ) = \/19 / 3x 6 existe ?
$f(x) = \frac{ \sqrt{19} }{3x + 6}$
​

Answer 1

$\boxed{\begin{array}{l}\sf toda~func_{\!\!,}\tilde ao~racional~s\acute o~existe~quando\\\sf o~denominador~\acute e~n\tilde ao~nulo.\\\sf ou~seja\\\sf 3x+6\ne0\\\sf 3x\ne-6\\\sf x=-\dfrac{6}{3}\\\\\sf x\ne-2\end{array}}$