Раскройте, , предел неопределённостей

lim x->3 (x^2 - 2x - 3)/(x^2 - 9) = [ 0/0] = 
= lim x->3 (x - 3)*(x + 1)/(x - 3)*(x + 3) = 
= lim x->3 (x + 1)/(x + 3) = (3 + 1)/(3 + 3) = 4/6 = 2/3


lim x->3 (x^2 - 2x - 3)/(x^2 - 9) = [ 0/0] = 
= lim x->3 (2x - 2)/2x = (6 - 2)/6 = 4/6 = 2/3