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Mathematics 21 Online
OpenStudy (anonymous):

Impossible Math Question -_-

OpenStudy (anonymous):

"Find x > 3 such that ln(x) < x^(0.1)"

OpenStudy (anonymous):

@jim_thompson5910

OpenStudy (anonymous):

@SWAG

OpenStudy (anonymous):

Jim you know this one?

jimthompson5910 (jim_thompson5910):

you'll have to use a calculator, that's probably the best option

jimthompson5910 (jim_thompson5910):

doing it algebraically is impossible (at least I think it is)

OpenStudy (anonymous):

Yea, It impossible to me because i'm very good at math but that question is very hard.

jimthompson5910 (jim_thompson5910):

do you have a calculator?

OpenStudy (anonymous):

Well i have one on my computer.

jimthompson5910 (jim_thompson5910):

use wolfram alpha to get this http://www.wolframalpha.com/input/?i=ln%28x%29+%3C+x^%280.1%29

jimthompson5910 (jim_thompson5910):

keep in mind that the x > 3

OpenStudy (anonymous):

Ok

OpenStudy (anonymous):

I also have another one if you know how to do it.

OpenStudy (anonymous):

If 1/2x +1/2(1/2x + 1/2(1/2x +1/2(1/2x + ... = y, then x = ?

OpenStudy (anonymous):

x=y

OpenStudy (anonymous):

LHS is just (1/2+(1/2)^2+(1/2)^3+ ...)x which is just x

OpenStudy (anonymous):

So whats answer?

OpenStudy (anonymous):

y

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