How do I do this? lim (square root(8x^3 + 5x + 10)) / (x^2) x->infinity Any help?
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it goes to the numerator is bigger than denominator
Originally Posted by javax it goes to the numerator is bigger than denominator Not exactly.
Originally Posted by o_O Not exactly. opps, I didn't notice the root at all! Sorry
I tried using the sandwich rule but my final answer doesn't make much sense: 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?
Originally Posted by Showcase_22 I tried using the sandwich rule but my final answer doesn't make much sense: 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? The sandwich theorem works fine. If f(x) < g(x) < h(x) and then .
Oh right. It just didn't look right when I got to the end. I think that's the first time i've ever used the sandwich rule. It's nice to know I was doing it correctly!
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