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- Sep 22nd 2009, 11:30 AM #1

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- Sep 2009
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## IVT with ln Question

Hi there, I used to post here occasionally but my account was either deactivated or more likely I lost my password/username etc...

Anyway, my question is this,

use the intermediate value theorem to prove that equation lnx + x = 3 has a solution in the interval [1,e]

Basically I know how to use the theorem but including ln and base e have lost me. Any help will be greatly appreciated! Thanks!

- Sep 22nd 2009, 11:33 AM #2