Răspuns:
a) |x-√2| < 3√2
x-√2 < 3√2 ,x-√2 ≥ 0
-(x-√2)<3√2 , x-√2 < 0
x<4√2 ,x≥√2
x>-2√2 ,x<√2
x € [√2;4√2)
x € (-2√2;√2)
x € (-2√2;4√2)
b) |x-√3| ≤ 2√3
x-√3≤2√3 ,x-√3 ≥ 0
-(x-√3)≤2√3, x-√3 < 0
x≤3√3, x≥ √3
x≥ -√3, x< √3
x € [√3;3√3]
x € [-√3;√3)
x € [-√3;3√3]
EVERGREEN