zkfcfbzr@lemmy.world to Daily Maths Challenges@lemmy.worldEnglish · 5 months agoSolve for xlemmy.worldimagemessage-square7fedilinkarrow-up12arrow-down10file-text
arrow-up12arrow-down1imageSolve for xlemmy.worldzkfcfbzr@lemmy.world to Daily Maths Challenges@lemmy.worldEnglish · 5 months agomessage-square7fedilinkfile-text
minus-squarezkfcfbzr@lemmy.worldOPlinkfedilinkEnglisharrow-up0·edit-25 months agoYes, though I prefer spoilered answers with work (especially since something like Wolfram|Alpha can just spit out the answer here) I’m curious about your retracted edit, since I saw your original message had just the correct answer - why 30k?
minus-squareLojcs@lemm.eelinkfedilinkarrow-up0·edit-25 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-25 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
Spoiler
30?
E: 30k?Yes, though I prefer spoilered answers with work (especially since something like Wolfram|Alpha can just spit out the answer here)
I’m curious about your retracted edit, since I saw your original message had just the correct answer - why 30k?
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