Răspunsuri

2014-06-16T21:34:37+03:00
|X|≤3 (deoarece un modul e intotdeauna pozitiv)
X ∈ Z ⇒ x ∈ {0,1,2,3}
|X|>5
x∈Z    => X∈{6,7,8....}
|2x|<8 
x ∈ Z   => 2x<8 / :2 => x<4 => X ∈{0,1,2,3} 
Cam atat..

4 2 4
2014-06-16T21:40:08+03:00
X≤3 ⇒x mai mic sau egal decat 3
x=0,1,2,3

x > 5 ⇒x mai mare decat 5
x= 6,7,8,9,10,.....

2x < 8⇒2·x mai mic decat 8
x=0,1,2,3
2x=0,2,4,6
2 5 2