Question

Lim t^2-5t+6/t-2 quando t tende à 2

Answer 1

P(x)=ax²+bx+c=a*(x-x')*(x-x'')

Lim t^2-5t+6/t-2
t-->2

t^2-5t+6=0
t'=2
t''=3
t^2-5t+6=(t-3)(t-2)

Lim (t-3)(t-2)/(t-2)
t-->2

Lim (t-3) = -1
t-->2