zkfcfbzr@lemmy.world to Daily Maths Challenges@lemmy.worldEnglish · 6 months agoSolve for xlemmy.worldimagemessage-square7fedilinkarrow-up13arrow-down10file-text
arrow-up13arrow-down1imageSolve for xlemmy.worldzkfcfbzr@lemmy.world to Daily Maths Challenges@lemmy.worldEnglish · 6 months agomessage-square7fedilinkfile-text
minus-squareLojcs@lemm.eelinkfedilinkarrow-up0·edit-26 months agoI thought 0 also works so maybe it’s multiples of 30 but then tried 60 and it didn’t work
minus-squarezkfcfbzr@lemmy.worldOPlinkfedilinkEnglisharrow-up0·edit-26 months ago spoilers 0 does work as a trivial solution, since 0^a = 0^b always holds, but yea, 30’s the only other one - the key comes down to the fact that a^log(b) = b^log(a) in general, and 30 is what achieves that here
I thought 0 also works so maybe it’s multiples of 30 but then tried 60 and it didn’t work
spoilers
0 does work as a trivial solution, since 0^a = 0^b always holds, but yea, 30’s the only other one - the key comes down to the fact that a^log(b) = b^log(a) in general, and 30 is what achieves that here