Chứng minh M + 1 có 31 chữ số?

[dungcoithuong22]

Cho M=1+2+2^2+...+2^99.Chung minh rang M+1 co 31 chu so.Ai giai duoc noi cho to nhe!

 

[lolem_py]

THÚ VỊ Ta...

 

[dungcoithuong22]

help meeeeee

 

[anthuong]

mathk 9

cho M=1+2+2^2+...+2^99 , chung minh rang M+1 co 31 chu so.ai giai duoc noi cho to nhe
giai
2.m=2(1+2^2+...+2^99)
2.m=2(2+2^2+...+2^99)
2.m= 2+2^2+...+2^100
2.m-2= 2+2^2+...+2^100-1-2-2^2-...-2^99
m=2^100-1=2^100
m+1=(2^100)+1
anthuong 0 biet lam dung 0 nua
chu de la mathk6 chu 0 fai mathk9 ma ai cho anthuong y kien bai lam cua anthuong di

 

[anthuong]

bai nay anthuong chi giai dc m=... thoi con muon chung minh thi anthuong co 1 cach nhung rat mac thoi gian do la doi 2^10=... va sau do + 1 mac thoi gian ha.
ai giai dc 1 cach gan gon va dung nhat thi giai giup anthuong nha...:redface: quen va giup ban dang bai nua.:angel: