Rezolvati inecuatiile:
a)[tex] \frac{ x^{2} +x+1}{ x^{2} -x+1} \ \textgreater \ 0[/tex]
b)[tex] \frac{1}{ x^{2} -4} \ \textgreater \ 0[/tex]
c)[tex] \frac{ x^{2} -1}{4- x^{2} } \geq 0[/tex]
d)[tex] \frac{ x^{2} -2x+1}{ x^{2} +3x+4} \leq 0[/tex]
e)[tex] \frac{ x^{2} +4x+5}{2x-1- x^{2} } \ \textless \ 0[/tex]
Dau coroana.. am nevoie pana maine!