Indeterminate Products Giving Me Two Different Limits

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moe darklight
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Homework Statement



lim x-->0 of [tex]x lnx[/tex]

Homework Equations


The Attempt at a Solution



1) [tex]\frac{lnx}{1/x}[/tex] = [tex]\frac{1/x}{-1/x^{2}}[/tex] = (-x) = 0

2) [tex]\frac{x}{1/lnx}[/tex] = [tex]\frac{1}{1/1/x}[/tex] = [tex]\frac{1}{x}[/tex] = [tex]\infty[/tex]
 
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hmmm...are you sure [tex]\frac{d}{dx} \frac{1}{\ln (x)}=\frac{1}{\frac{1}{x}}[/tex]?:wink:
 
yea I realized it after a minute of looking at it again. this is exactly the sort of stupid mistake that lowers my marks in tests.

and oops. I didn't see you answer or I wouldn't have edited the entry back.

edit edit: there, I put it back up... but for some reason I think I made a double of the thread... agh. it's 4 AM. I'm tired :smile:

edit edit edit: and, of course: thanks.

(I go sleep now)
 
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