Jika lim _(x -> 1) (akar(a x^(2)+b)-3)/(x-1)=A , maka lim

Jika lim _(x -> 1) (akar(a x^(2)+b)-3)/(x-1)=A , maka lim _(x -> 1) (akar((a x^(2))/(4)+(b)/(4))-x-(1)/(2))/(x^(2)+x-2)=... a. (A-2)/(6) C. (A-2)/(3) e. (2 ~A-1)/(6) b. (A-1)/(6) d. (A-1)/(3)