Question

Se considera expresiaE(x)=2x+1/x-1 :(1- 3x²/1-x²),unde x apartine lui R /{-1;-1/2;1/2;1}
a)Demonstrati ca E(x)=x+1/2x-1,oricare ar fi x apartine R /{-1;-1/2;1/2;1}

Answer 1

Trebuie sa fie 1-4x^2