Question

Решите неравенство:

|1 - X| > 3

Answer 1

 

$|1-x|>3, \ left [ {1-x<-3} atop {1-x>3;}} right.}} right. left [ {{-x<-4} atop {-x>2}} right. left [ {x>4,} atop {x<-2;}} right. \ xin(-infty;-2)cup(4;+infty).$