Question

pentru x apartine lui r\{-1,0},forma simplificata a expresiei E(x)= x/x+1 - x+1/x - 1/x(x+1)
va rog, este urgent​

Answer 1

$\frac{x}{ \times - 1} - \frac{x - 1}{x - 1} - \frac{1}{x(x - 1)} =$

$= \frac{x - x + 1}{x - 1} - \frac{1}{x(x - 1)} =$

$= \frac{1}{x - 1} - \frac{1}{x(x - 1)} =$

$= \frac{x}{x(x - 1)} - \frac{1}{x(x - 1)} =$

$= \frac{x - 1}{x(x - 1)} =$

$= \frac{1}{x}$