[tex] \text{Fie functia }f:\mathbb{R}\rightarrow \mathbb{R},f(x)=\dfrac{(x+1)^3}{x^2-x+1} \\
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\text{Ecuatia normalei la graficul functiei f in punctul in care graficul}\\
\text{functiei intersecteaza axa Oy este :}\\
\boxed{A}.2y-2x+1=0~~~\boxed{B}.\frac{1}{4}y-3x+1=0~~~\boxed{C}.y-x+1=0\\
\boxed{D}.y+\dfrac{1}{4}x-1=0~~~\boxed{E}.4y-x+1=0 [/tex]