## anonymous 4 years ago Find the limit. lim x-->3. sqrt(x+1)/x-4

1. anonymous

|dw:1342982402887:dw|

2. anonymous

I got -2.. is that right @apoorvk

3. anonymous

it is +2 or -2 depending on the what you take as sqrt ( 4)= [ 2 or -2]

4. anonymous

I got -2 as my answer..

5. anonymous

well the square root of 4 is 2.... so

6. anonymous

But we have to divide by -1. SO i got -2 @quarkine

7. anonymous

answer is -2 u r Quite right

8. anonymous

but cant sqrt 4 be taken as -2 as well??

9. anonymous

No

10. anonymous

why?

11. anonymous

@schmidtdancer ??

12. anonymous

we consider $$y=\sqrt{x+1}$$ as a function so for a given x u have a unique y

13. anonymous

|dw:1342983149196:dw|

14. anonymous

am i right quarkine?

15. apoorvk

yes @mukushla you're right!

16. anonymous

hmmm yeah... thought of that but here it wasnt said anything about a single valued function..

17. apoorvk

and @schmidtdancer you too with -2!