this post was submitted on 13 May 2024
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  • Show that it's possible a^b=c where a and b are irrational, and c is rational.

Sry for the gap I ran out of ideas.

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[–] [email protected] 6 points 4 months ago (1 children)
[–] [email protected] 5 points 4 months ago

that is simply genius

(i suppose it didnt come to me when i think of "irrational")

[–] [email protected] 4 points 4 months ago* (last edited 4 months ago)

this one got some table slams from my friends

Hint:

spoilerFind an example which satisfies the equation.


Solution:

spoilerhttps://gmtex.siri.sh/fs/1/School/Extra/Maths/Qotd%20solutions/2024-05-13_irrational-powers.html

[–] [email protected] 1 points 4 months ago* (last edited 4 months ago)

solutione^(i*π) = -1

Also, anything like a^(log(c) / log(a)), for positive rational c and irrational a, to generalize bean_jamming's answer

I also assert without proof that in the equation x^x = c, x is irrational for most rational values of c

I did start trying out stuff with sqrt(2), thinking back to the tower power problems, but didn't end up coming up with your solution while doing so ¯\_(ツ)_/¯