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anonymous
 5 years ago
Integral from 1 to e of
(e^2x)/(1+e^x)
anonymous
 5 years ago
Integral from 1 to e of (e^2x)/(1+e^x)

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you would solve this using usubstition

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0but its a little confusing...with the e^2x since if you set u=1+e^x, and du=e^xdx and that wont cancel out e^2x

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0actually the problem is a improper integral from negative infinity to infinity sorry

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so you have to remember the properties of powers...which e^2x=e^2*e^x and e^2 is a number so you can take it out to find the integral

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0can you get it from here?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so the u would be (1+e^x)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0e^2x=e^2*e^x is wrong. e^2x = (e^x)^2

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0if you meant integral (e^[2x])/(1+e^x), then let e^x = u: (e^[2x])/(1+e^x) becomes (u)/(1+u), we then do a silly algebra trick, (u)/(1+u) = (u+[11])/(1+u) which leads to integral ( 1  1/(1+u) ) = u  integral ( 1/(1+u) ) = u  ln(1+u) substituting e^x = u: e^x  ln(1+e^x)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0perhaps on a silly note it also takes the following form: \[ \sqrt{(e^{t/2})}* e^{\cosh ^{1}\sqrt{(e ^{t/2}})}\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0let e^x=u du=e^xdx therefore dx=du/e^x but e^x=u thus dx=du/u proceed.... sol'n ee^e+ln((1e)/(1e^e))
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