Question

Inecuatia 2 supra x-3 <0

Answer 1

$\frac{2}{x-3} \ \textless \ 0 \\\\ x-3\ \textless \ 0\\\\x-3=0 \ \ \ \longrightarrow x=3$

Facem tabelul semnelor sa vedem ce valori ia x:

    x|-∞___3___+∞
--------------------------
x-3 |---------O+++++

x-3 < 0 inseamna ca se iau doar valorile negative ==> x ∈(-∞ ; 3)