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Math Forum » Discussions » Math Topics » alt.algebra.help.independent

Topic: derivatives, limts, prooves
Replies: 1   Last Post: Dec 28, 2012 8:26 AM

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ungeheuer

Posts: 7
Registered: 10/7/12
derivatives, limts, prooves
Posted: Dec 26, 2012 4:02 AM
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Please, when we proove f'ln(x) = 1/x,
how do we get that:

lim ln((1/x)(1+u)^(1/u) = 1/x ln lim(1+u)^(1/u) ???

many thanks!



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