A = 1/2 + 1/4 + 1/8 + 1/16 + 1/32 + 1/64 + 1/128 + 1/256 Nkank giúp eim =( #DONOTCOPY 13/07/2021 Bởi Reagan A = 1/2 + 1/4 + 1/8 + 1/16 + 1/32 + 1/64 + 1/128 + 1/256 Nkank giúp eim =( #DONOTCOPY
`A = 1/2 + 1/4 + 1/8 + 1/16 + 1/32 + 1/64 + 1/128 + 1/256` `2 xx A = 2 xx (1/2 + 1/4 + 1/8 + 1/16 + 1/32 + 1/64 + 1/128 + 1/256)` `2 xx A = 1 + 1/2 + 1/44 + 1/8 + 1/16 + 1/32 + 1/64 + 1/128` `2 xx A – A = (1 + 1/2 + 1/44 + 1/8 + 1/16 + 1/32 + 1/64 + 1/128) – (1/2 + 1/4 + 1/8 + 1/16 + 1/32 + 1/64 + 1/128 + 1/256)` `A = 1 + 1/2 + 1/44 + 1/8 + 1/16 + 1/32 + 1/64 + 1/128 – 1/2 – 1/4 – 1/8 – 1/16 – 1/32 – 1/64 – 1/128 – 1/256` `A = 1 – 1/256` `A = 255/256` Bình luận
A=$\frac{1}{2}$ + $\frac{1}{4}$ + $\frac{1}{8}$ + $\frac{1}{16}$ + $\frac{1}{32}$ + $\frac{1}{64}$ + $\frac{1}{128}$ + $\frac{1}{256}$ 2A = 1 + $\frac{1}{2}$ + $\frac{1}{4}$ + $\frac{1}{8}$ +… + $\frac{1}{128}$ 2A – A = 1 – $\frac{1}{256}$ A = $\frac{255}{256}$ Chúc bạn học tốt cho mình xin 5 sao và ctlhn Bình luận
`A = 1/2 + 1/4 + 1/8 + 1/16 + 1/32 + 1/64 + 1/128 + 1/256`
`2 xx A = 2 xx (1/2 + 1/4 + 1/8 + 1/16 + 1/32 + 1/64 + 1/128 + 1/256)`
`2 xx A = 1 + 1/2 + 1/44 + 1/8 + 1/16 + 1/32 + 1/64 + 1/128`
`2 xx A – A = (1 + 1/2 + 1/44 + 1/8 + 1/16 + 1/32 + 1/64 + 1/128) – (1/2 + 1/4 + 1/8 + 1/16 + 1/32 + 1/64 + 1/128 + 1/256)`
`A = 1 + 1/2 + 1/44 + 1/8 + 1/16 + 1/32 + 1/64 + 1/128 – 1/2 – 1/4 – 1/8 – 1/16 – 1/32 – 1/64 – 1/128 – 1/256`
`A = 1 – 1/256`
`A = 255/256`
A=$\frac{1}{2}$ + $\frac{1}{4}$ + $\frac{1}{8}$ + $\frac{1}{16}$ + $\frac{1}{32}$ + $\frac{1}{64}$ + $\frac{1}{128}$ + $\frac{1}{256}$
2A = 1 + $\frac{1}{2}$ + $\frac{1}{4}$ + $\frac{1}{8}$ +… + $\frac{1}{128}$
2A – A = 1 – $\frac{1}{256}$
A = $\frac{255}{256}$
Chúc bạn học tốt cho mình xin 5 sao và ctlhn