Find the Limit of (x - sqrt(x)) as x approaches infinity

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Find the Limit of (x - sqrt(x)) as x approaches infinity

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Much easier way:
x-x^1/2
= (x)(1-x^-1/2)
Lim->infinity = (infinity)(1)
= infinity

jhonnyrock
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this WAS helpful to someone in the world!
please keep more of these short little challenges videos, they are so satisfying, and finally something i can pick up as an undergrad in my first semester, thank youuu!

wandrespupilo
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As always, enjoyed your beautiful presentation with the yellow pencil and paper.

aminramazanifar
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is it possible to do one video for a list of how to do general limits.

aelinwhitehorn
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Well this was really helpful to someone in this world thanks and keep going

lalalisa
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x – sqrt(x) = sqrt(x)·(sqrt(x) – 1). sqrt(x) diverges, and sqrt(x) – 1 diverges in the same direction, so their product diverges.

angelmendez-rivera
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oneliner: just introduce y:=1/x and pass to lim (y->0).

edal
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Shouldn't we assume that x != 0 when we're multiplying nominator and denominator by 1/x in the second step? As well as pointing out that this function is defined for x > 0? Strict, because of 1/x thing ...

jakubjurczak
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just take root x common then root x approaches infinity as well as rootx-1 so their product goes infinity as well.

jatinkapoor
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How did you know to multiply top & bottom by 1/x ? Why not 1/x^2 or 1/x^(1/2) ?

nexusnexus
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"Take it to the limit" ~ The Eagles

douglasstrother
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How could I used these things in the real life (That is the question)

fadwamuftah