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e^pi vs pi^e

Education

We will compare e^pi vs pi^e to see which number is bigger. #math #calculus #blackpenredpen

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J
josué_costela 1 week, 4 days ago

ln(e^pi)≈3.142, ln(pi^e)=eln(pi)≈2.718×1.13=3.0752, 3.142>3.075, so also e^pi≈20+pi, pi^e≈21.46 so easy natural logs are so powerful

melanie.campbell
melanie.campbell 1 week, 4 days ago

Key approach to solve this problem -: 1. e^x > 1+x 2. Replace x with π/e - 1

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wandamyst1 1 week, 5 days ago

Amazing how math is mathing

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brenda.padilla 1 week, 6 days ago

Wow, I was so wrong! I was rounding pi to 3 and e to 2 and assuming that would be close enough, but it turns out that will not give you the correct answer!!

micheal_santiago
micheal_santiago 2 weeks ago

What made you think to let x= pi/e - 1? Sure it works, but how did you know to choose that particular substitution?

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erick_pimenta 2 weeks ago

Wow

C
carrie.chambers 2 weeks ago

y = e^x /x^e 0 < y(e) = 1 **** ln y = x - e ln x y'/y = 1 - e/x y' = (1 - e/x)(e^x / x^e) > 0 for x > e y' = 0 for x =e. Therefore y is monotonic increasing for x>e In particular as pi > e y(pi) > y(e) = 1 implies e^pi / pi^e > 1 implies e^ pi > pi^e

D
damien_davies 2 weeks ago

I use a calculator 😀

pedrolucas.abreu
pedrolucas.abreu 2 weeks ago

e^π=απ^e Lne^π=αln(π^e) π=αeln(π) π/eln(π)>1

helena_novais
helena_novais 2 weeks ago

Cool, I personally came to the solution using the function f(x) = 1/x and the integral from e to pi of f(x) which is ln(pi) - 1 and from the graph we can see that (pi-e)*f(e) must be greater then the integral, and from there we can also find that e^pi > pi^e

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nicholas_bell 2 weeks ago

Tbh pi^e is better cuz its yummy

matthewmist72
matthewmist72 2 weeks ago

Bjt wouldnt the answer change depending on the value of e like if e=2 vs e=3

H
hugo.ozuna 2 weeks ago

Решил за 3,14с по теореме степень пизже основания

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daniel.cantu 2 weeks ago

The posteev powur

M
maríadelcarmenuribe801 2 weeks ago

Very clever solution!

utkarsh.kalita
utkarsh.kalita 2 weeks, 1 day ago

Elegant and understandable..... and sneaky way to insert in later in progress turns out exactly π ^e <e^π.... Thank you 👍

S
steven.leon 2 weeks, 1 day ago

Slick!

S
sallysimmons345 2 weeks, 1 day ago

This was an elegant solution for sure definitely better than using ln

ross_shepherd
ross_shepherd 2 weeks, 1 day ago

I was expecting to see you use the derivative of x^(1/x). This was a nice surprise.

jorge_razo
jorge_razo 2 weeks, 1 day ago

The one with the biggest exponent. Always.