Question

1/3 + 1/9 + 1/27 + 1/81 + 1/243 + 1/729

Answer 1

364/729 k nhé nếu thấy đúng

Answer 2

1/3+1/9=3/9+1/9=4/9+1/27=12/27+1/27=13/27+181=39/81+1/81=40/81+1/243=120/243+1/243=121/243+1/729=363/729+1/729=364/729

Answer 3

ksm j hhsnxncncujdhdndndncijdmkdlxkdoodkđnfnnfjdjdslsksjdjdjjdjdjdjdjjxjdjdjd