Question

Lim х движется к 3 х^2-2х-3/х^2+3х+9

Answer 1

lim х->3 (х^2-2х-3)/(х^2+3х+9) = (3^2 -2*3 -3) / (3^2+3*3+9) = (9-6-3)/(9+9+9) =0/27 = 0

Answer 2

Lim ->3 x²/x²+3x+9-2x/x²+3x+9-3/x²+3x+9=3²/3²+3*3+9-2*3/3²+3*3+9-3/3²+3*3+9=0