Question

lim (t^2-90)/(t-3)
t->3

Answer 1

dne

Answer 2

does not exist

Answer 3

its not right i wrote that on my exam it marked wrong!!!

Answer 4

(t^2-9)/(t-3) has limit that exist

Answer 5

take L'hopital rule.

Answer 6

cant use that rule here

Answer 7

this limit does not exist
you may confirm with a graph if you like

Answer 8

oh yes, you are right. l'hospital rule doesn't apply here because this is not 0/0. the limit does not exist. Otherwise, I think if there is really a need for an answer, maybe infinity is right?

Answer 9

if this is the question your teacher wrote and she/he marked it wrong for say it dne
teacher made a mistake it happens

Answer 10

from left of 3 it approaches inf
from right of 3 it approaches -inf

Answer 11

so ican contest it ,that wil change my gradeby a letter

Answer 12

one problem change grade?

Answer 13

by a letter?

Answer 14

yep

Answer 15

nice so the question wasn't (t^2-9)/(t-3)

Answer 16

i have a 79 ill get an 84

Answer 17

nice!

Answer 18

so dne is the answer???

Answer 19

yes

Answer 20

so it wasn't (t^2-9)/(t-3)

Answer 21

i was that

Answer 22

(t^2-9)/(t-3)=t+3

t->3, f(t)->6
if this was the question

Answer 23

isnthe lim 6???

Answer 24

yes that is what that means

Answer 25

79 is still good

Answer 26

later im going to bed