Question

S=1/2+1/6+1/12+1/20+...+1/2352+1/2450

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Answer 1

S=1/2+1/6+...............+1/2450

S=1/1.2+1/2.3+............+1/49.50

S=1-1/2+1/2-1/3+..........+1/49-1/50

S=1-1/50

S=49/50

Answer 2

S=1/2+1/6+...............+1/2450

S=1/1.2+1/2.3+............+1/49.50

S=1-1/2+1/2-1/3+..........+1/49-1/50

S=1-1/50

S=49/50

Answer 3

S=1/2+1/6+1/12+1/20+...+1/2352+1/2450

S=1-1/2+1/2-1/3+1/3-1/4+1/4-1/5+...+1/48-1/49+1/49-1/50

S=1-1/50

S=49/50

Vậy S=49/50

Answer 4

\(S=\frac{1}{2}+\frac{1}{6}+...+\frac{1}{2450}\)

\(S=\frac{1}{1.2}+\frac{1}{2.3}+...+\frac{1}{49.50}\)

\(S=1-\frac{1}{2}+\frac{1}{2}-\frac{1}{3}+...+\frac{1}{49}-\frac{1}{50}\)

\(S=1-\frac{1}{50}\)

\(S=\frac{49}{50}\)

Answer 5

kHI BẠN BIẾT TỤI MÌNH SẼ BIẾT .

Answer 6

Ki bn biet tui mk se biet

Answer 7

S=11.2 +12.3 +...+149.50 

S=1−12 +12 −13 +...+149 −150 

S=1−150 

S=4950 

 Đúng 2  Sai 0

Trương Quang Hải 08/02/2016 lúc 12:36
 Báo cáo sai phạm

S=1/2+1/6+1/12+1/20+...+1/2352+1/2450

S=1-1/2+1/2-1/3+1/3-1/4+1/4-1/5+...+1/48-1/49+1/49-1/50

S=1-1/50

S=49/50

Vậy S=49/50

Answer 8

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