Question

1/3+1/6+1/12+...+1/3072

hơi khó thôi trả lời nhanh + đúng thì mình tick r kb vs mình nha

Answer 1

= \(\frac{3071}{3072}\)nha !

chắc vậy ! 

Answer 2

ko đúng

Answer 3

sai de roi .neu dung thi viet lai moi phan so khi tu va mau nhan voi 2.bo 2 ra ngoai roi tach mau thanh 2 so lien tiep

oke.hieu chua

Answer 4

Đặt S = 1/3+1/6+1/12+...+1/3072

=>2xS=(1/3+1/6+1/12+...+1/3072)x2

=>2xS=2/3+1/3+1/6+...+1/1536

=>2xS-S=(2/3+1/3+1/6+...+1/1536)-(1/3+1/6+1/12+...+1/3072)

=>S=2/3+1/3+1/6+...+1/1536-1/3-1/6-1/12-...-1/1536-1/3072

=>S=2/3-1/3072=2047/3072