How do I do this?

lim (square root(8x^3 + 5x + 10)) / (x^2)

x->infinity

Any help?

Printable View

- Sep 21st 2008, 07:05 PMkitle545limit to infinity
How do I do this?

lim (square root(8x^3 + 5x + 10)) / (x^2)

x->infinity

Any help? - Sep 21st 2008, 07:13 PMjavax
it goes to

the numerator is bigger than denominator - Sep 21st 2008, 07:14 PMo_O
- Sep 21st 2008, 08:25 PMjavax
- Sep 22nd 2008, 05:03 AMShowcase_22
I tried using the sandwich rule but my final answer doesn't make much sense:

http://i116.photobucket.com/albums/o...sproblem71.jpg

The final bit doesn't make sense since I get that it convereges to a number between 0 and 0 that isn't 0. :s

any helpers? - Sep 22nd 2008, 06:18 AMmr fantastic
- Sep 23rd 2008, 04:05 AMShowcase_22
Oh right. It just didn't look right when I got to the end.(Worried)

I think that's the first time i've ever used the sandwich rule. It's nice to know I was doing it correctly!(Giggle)