Question

lim x2-4x+3
x>3 x2-x-6

Answer 1

Resposta:

ax²+bx+c=a*(x-x')*(x-x'')    ...x' e x'' são as raízes

Lim (x²-4x+3)/(x²-x-6)

x-->3

Lim (x-1)*(x-3)/(x-3)(x+2)

x-->3

Lim (x-1)/(x+2) =(3-1)/(3+2) =2/5

x-->3