Technical information
Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: Se consideră funcţia [f left parenthesis x right parenthesis equals fraction numerator # a space x cubed plus left parenthesis # b right parenthesis over denominator x squared plus # c end fraction]. Să se aleagă varianta corectă pentru derivata lui f.: (36·x^6-36·x^3+9)/(x^4+18·x^2+81); (6·x^4+162·x^2+6·x)/(x^4+18·x^2+81); (6·x^2-3·x+9)/(x^4+18·x^2+81)
Right answer summary: (6·x^4+162·x^2+6·x)/(x^4+18·x^2+81)
Question state: todo