schmidtdancer Group Title Find the limit. lim x-->3. sqrt(x+1)/x-4 2 years ago 2 years ago

1. schmidtdancer

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2. schmidtdancer

I got -2.. is that right @apoorvk

3. quarkine

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

4. schmidtdancer

I got -2 as my answer..

5. schmidtdancer

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

6. schmidtdancer

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

7. mukushla

answer is -2 u r Quite right

8. quarkine

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

9. schmidtdancer

No

10. quarkine

why?

11. quarkine

@schmidtdancer ??

12. mukushla

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

13. mukushla

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14. mukushla

am i right quarkine?

15. apoorvk

yes @mukushla you're right!

16. quarkine

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

17. apoorvk

and @schmidtdancer you too with -2!