fossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 11 个月前I just cited myself.mander.xyzimagemessage-square239linkfedilinkarrow-up1862arrow-down143
arrow-up1819arrow-down1imageI just cited myself.mander.xyzfossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 11 个月前message-square239linkfedilink
minus-squareIntriguedIceberg@lemmy.worldlinkfedilinkEnglisharrow-up19arrow-down1·edit-211 个月前It still equals 1, you can prove it without using fractions: x = 0.999… 10x = 9.999… 10x = 9 + 0.999… 10x = 9 + x 9x = 9 x = 1 There’s even a Wikipedia page on the subject
minus-squareClinicallydepressedpoochie@lemmy.worldlinkfedilinkEnglisharrow-up11arrow-down3·edit-211 个月前I hate this because you have to subtract .99999… from 10. Which is just the same as saying 10 - .99999… = 9 Which is the whole controversy but you made it complicated. It would be better just to have them do the long subtraction If they don’t get it and keep trying to show you how you are wrong they will at least be out of your hair until forever.
minus-squareLaser@feddit.orglinkfedilinkEnglisharrow-up8arrow-down1·11 个月前You don’t subtract from 10, but from 10x0.999… I mean your statement is also true but it just proves the point further.
minus-squareClinicallydepressedpoochie@lemmy.worldlinkfedilinkEnglisharrow-up4·edit-211 个月前No, you do subtract from 9.999999…
minus-squareColeSloth@discuss.tchncs.delinkfedilinkEnglisharrow-up1arrow-down12·11 个月前Do that same math, but use .5555… instead of .9999…
minus-squareBeardedGingerWonder@feddit.uklinkfedilinkEnglisharrow-up8·11 个月前Have you tried it? You get 0.555… which kinda proves the point does it not?
minus-squareWandering_Uncertainty@lemmy.worldlinkfedilinkEnglisharrow-up5·11 个月前??? Not sure what you’re aiming for. It proves that the setup works, I suppose. x = 0.555… 10x = 5.555… 10x = 5 + 0.555… 10x = 5+x 9x = 5 x = 5/9 5/9 = 0.555… So it shows that this approach will indeed provide a result for x that matches what x is supposed to be. Hopefully it helped?
It still equals 1, you can prove it without using fractions:
x = 0.999…
10x = 9.999…
10x = 9 + 0.999…
10x = 9 + x
9x = 9
x = 1
There’s even a Wikipedia page on the subject
I hate this because you have to subtract .99999… from 10. Which is just the same as saying 10 - .99999… = 9
Which is the whole controversy but you made it complicated.
It would be better just to have them do the long subtraction
If they don’t get it and keep trying to show you how you are wrong they will at least be out of your hair until forever.
You don’t subtract from 10, but from 10x0.999… I mean your statement is also true but it just proves the point further.
No, you do subtract from 9.999999…
deleted by creator
Do that same math, but use .5555… instead of .9999…
Have you tried it? You get 0.555… which kinda proves the point does it not?
???
Not sure what you’re aiming for. It proves that the setup works, I suppose.
x = 0.555…
10x = 5.555…
10x = 5 + 0.555…
10x = 5+x
9x = 5
x = 5/9
5/9 = 0.555…
So it shows that this approach will indeed provide a result for x that matches what x is supposed to be.
Hopefully it helped?