## nickymarden Group Title lim 1/(x+2).(X-2) x->2 2 years ago 2 years ago

1. TuringTest

$\lim_{x\to2}{1\over(x+2)(x-2)}$?

2. nickymarden

yeah :)

3. TuringTest

can you find the left and right hand limits?

4. TuringTest

$\lim_{x\to2^+}{1\over(x+2)(x-2)}$and$\lim_{x\to2^-}{1\over(x+2)(x-2)}$

5. nickymarden

so it has 2 answers? i did that already but it says the answer is $1/3\sqrt[3]{4}$

6. TuringTest

that's not correct...

7. nickymarden

yeah, thank you. I was just checking :)

8. TuringTest

sure you're looking at the right problem :P ?

9. nickymarden

yeah lol

10. nickymarden

but thank you anyway.

11. TuringTest

well I'm telling you the answer to the problem you posted is that the limit does not exist, so there must be a typo in your book

12. nickymarden

i got to the same answer as you, guess the book is wrong then haha.

13. TuringTest

oh it's very wrong http://www.wolframalpha.com/input/?i=limit+x+to+2+1%2F%28%28x-2%29%28x%2B2%29%29 the wolf agrees with us

14. nickymarden

i knew i wasn't crazy :P

15. TuringTest

not this time ;)