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experimentX Group TitleBest ResponseYou've already chosen the best response.0
it is given to prove that x/(1+x) < ln(1+x) < x in the interval [1,1+t] t>0
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.0
dw:1350718620013:dw
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.0
dw:1350718731005:dw
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.0
dw:1350718795042:dw
 2 years ago

Callisto Group TitleBest ResponseYou've already chosen the best response.0
But then, you still haven't considered lnx...
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.0
why do you need to prove ... ln(2) > 1/2 ?
 2 years ago

Callisto Group TitleBest ResponseYou've already chosen the best response.0
It's not prove.. but.. we have to consider lnx..
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.0
By considering ln x in [1; 1 + t] (t > 0), ln x in [1; 1 + t] (t > 0), minimum bound : ln(x) = 1 => x = e
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.0
x/(1+x) < ln(1+x) < x ... perhaps we can use the same argument as we used above.
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.0
\[ (x+1)^2 > 1+x > 1 \text{ for all x > 0} \\ {1 \over (1+x)^2} < {1 \over 1 +x} < 1 \text{ for all x > 0} \\ \int_0^x {1 \over (1+x)^2} \;dx < \int_0^x {1 \over 1 +x}\;dx < \int_0^x1 \; dx \\ {x \over 1+x} < \ln(1+x) < x \]
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.0
\[ \ln (x) \text{ in } [1, 1+t], t>0 \] perhaps this would mean show that \( \ln(1)<{t \over 1 +t} < \ln(1+t)\)
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.0
MVT http://upload.wikimedia.org/wikipedia/commons/thumb/e/ee/Mvt2.svg/300pxMvt2.svg.png
 2 years ago

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dw:1350722628100:dw
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dw:1350722670829:dw
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dw:1350722732492:dw
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experimentX Group TitleBest ResponseYou've already chosen the best response.0
dw:1350722797470:dw
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dw:1350722973766:dwdw:1350723003576:dw
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dw:1350723085914:dw
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Callisto Group TitleBest ResponseYou've already chosen the best response.0
f(b)  f(a) / (ba) ?
 2 years ago

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dw:1350724369177:dw
 2 years ago

Callisto Group TitleBest ResponseYou've already chosen the best response.0
OMG! My super smart brother!!
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.0
lol ... not that smart. Just copied half from your prev answer.
 2 years ago
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