find the limit

Question

lim(x-3)/(x²-2x-3)

x→3

Answer 1

Solve by factoring since you see just plugging 3 in will yield 0/0 or indeterminate. 

 

(x-3)/((x-3)(x+1)) = 1/(x+1)

 

lim    1/(x+1) = 1/(3+1) = 1/4

x→3