Question

Which limit does not exist?

lim 2-x/x+1
x->1

lim x^2-9/x-2
x->2

lim(x^2-2x-5)
x->1

lim x^2-6x+8/x-2
x->2

lim (x^2-3x-1)
x->3

Answer 1

Limit DNE when the top and bottom are like 0/0

Answer 2

plug n 1 for x, for problem 1.

Answer 3

pr0blem 2,

2-x / x-2
-1(x-2) / x-2

the answer is -1.

Answer 4

lim (x^2-3x-1)
x->3

(3)^2-3(3)-1
9-9-1
-1

Answer 5

thank you guys i got it now

Answer 6

no you can xD nvm

Answer 7

(x-4)(x-2)/x-2
so its just x-4

Answer 8

is there a typo somewhere, they all exist?

Answer 9

yeah i just fix it, it was the second one