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Limits

Name: Anonymous 2009-10-05 14:15

How the hell do you find the following limit?

lim [sqrt(x^3 + x^2) - sqrt(x^3)] / [sqrt(x)] as x -> infinity

I've tried everything. I've tried extracting the x from the numerator to make it a 0/0 expression to use L'Hôpital, but to no avail. I've tried to turn it into a limit of terms, and thus terms of limits, but no.

Fuckin' hell, I feel stupid.

Name: Anonymous 2009-10-05 14:40

Multiply the top and bottom by [sqrt(x^3 + x^2) + sqrt(x^3)] bro.

Name: Anonymous 2009-10-05 15:27

>>2

Shit that's actually pretty obvious.

I'll go cut myself now.

Name: Anonymous 2009-10-06 1:14

lol conjugates

Name: Anonymous 2009-10-06 9:32

Can't you just separate them and use l'hopital's rule?

Name: Anonymous 2009-10-08 4:26

>>5
no

Don't change these.
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