ickplant@lemmy.world to Lemmy Shitpost@lemmy.world · 1 year agoPaniki.postimg.ccimagemessage-square143fedilinkarrow-up11.3Karrow-down149
arrow-up11.25Karrow-down1imagePaniki.postimg.ccickplant@lemmy.world to Lemmy Shitpost@lemmy.world · 1 year agomessage-square143fedilink
minus-squarestebo02@sopuli.xyzlinkfedilinkarrow-up16·1 year agohttps://math.stackexchange.com/questions/341202/how-to-prove-the-divisibility-rule-for-3-casting-out-threes
What does the proof for this look like?
https://math.stackexchange.com/questions/341202/how-to-prove-the-divisibility-rule-for-3-casting-out-threes
90°