شرکت در آزمون آنلاین ریاضی و آمار 2 - فصل دوم : تابع | آزمون شماره 4148

$ \frac{۵}{۲} \leq x < \frac{۷}{۲} $

$ \frac{۵}{۲} \leq x \leq \frac{۷}{۲} $

$ \frac{۷}{۲} \leq x < \frac{۹}{۲} $

$ \frac{۷}{۲} < x \leq \frac{۹}{۲} $

$7$

$-7$

$25$

$-25$

$\left\{ \begin{align}
  & f:A\to B \\ 
 & f(x)=x \\ 
\end{align} \right.$

$\left\{ \begin{align}
  & f:A\to B \\ 
 & f(x)=\frac{1}{x} \\ 
\end{align} \right.$

$\left\{ \begin{align}
  & f:A\to B \\ 
 & f(x)=-5 \\ 
\end{align} \right.$

$f(x)=\left\{ \begin{matrix}
   -4 & ,\,\,\,\,\,x\ge 1  \\
   4 & ,\,\,\,\,\,x<1  \\
\end{matrix} \right.$

$f(x)=\left\{ \begin{align}
  & x+3\,\,\,\,\,\,\,\,,\,\,\,\,\,\,x\ge 0 \\ 
 & x-4\,\,\,\,\,\,\,\,,\,\,\,\,\,\,x<0 \\ 
\end{align} \right.$

$f(x)=\left\{ \begin{align}
  & x+3,\,\,\,\,\,\,x>0 \\ 
 & x-4,\,\,\,\,\,\,x\le 0 \\ 
\end{align} \right.$

$f(x)=\left\{ \begin{align}
  & x-3,\,\,\,\,\,\,x\ge 0 \\ 
 & x+4,\,\,\,\,\,\,x<0 \\ 
\end{align} \right.$

$f(x)=\left\{ \begin{align}
  & x-3,\,\,\,\,\,\,x>0 \\ 
 & x+4,\,\,\,\,\,\,x\le 0 \\ 
\end{align} \right.$