Question

СРОЧНО ПОМОГИТЕ!!!ДАЮ ВСЕ СВОИ БАЛЛЫ

Answer 1

Ответ:

$1)\ \ \left[\begin{array}{l}2x>4\\0,5x>3\end{array}\right\ \ \left[\begin{array}{l}x>2\\x>6\end{array}\right\ \ \ \ \Rightarrow \ \ \ x\in [\ 2\ ;+\infty )\\\\\\2)\ \ \left[\begin{array}{l}3x-1<2\\2-x>3\end{array}\right\ \ \left[\begin{array}{l}3x<3\\x<-1\end{array}\right\ \ \left[\begin{array}{l}x<1\\x<-1\ \ \ \Rightarrow \ \ \ x\in (-\infty\, ;\ 1\ )\end{array}\right$

$3)\ \ \left[\begin{array}{l}4-x>2\\2x<x+1\end{array}\right\ \ \left[\begin{array}{l}2>x\\x<1\end{array}\right\ \ \left[\begin{array}{l}x<2\\x<1\end{array}\right\ \ \ \Rightarrow \ \ \ x\in (-\infty \, ;\ 2\ )\\\\\\4)\ \ \left[\begin{array}{l}3x+2>x\\2x-1>1\end{array}\right\ \ \left[\begin{array}{l}2x>-2\\2x>2\end{array}\right\ \ \left[\begin{array}{l}x>-1\\x>1\end{array}\right\ \ \ \Rightarrow \ \ \ x\in (\, -1\ ;+\infty \, )$