bien doi so sdau tien
1-1/2+1/3-1/4+...+1/199-1/200
(1+1/3+1/5+...+1/199)-(1/2+1/4+1/6+...+1/200)
(1+1/2+1/3+1/4+1/5+1/6+...+1/199+1/200)-2*(1/2+1/4+1/6+,,,+1/200)
(1+1/2+1/3+1/4+...+1/200)-((1+1/2+1/3+...+1/100)
1/101+1/102+1/103+...+1/200=so bewn canh
Chung minh rang:
a,1-1/2+1/3-1/4+...+1/199-1/200=1/101+1/102+...+1/200
chung minh rang
\(1-\frac{1}{2}+\frac{1}{3}-\frac{1}{4}+...+\frac{1}{199}-\frac{1}{200}=\frac{1}{101}+\frac{1}{102}+\frac{1}{103}+...+\frac{1}{200}\)
giup minh minh like cho nho giai chi tiet mot chut nhe
Chứng minh:1-1/2+1/3-1/4+..........+1/199-1/200=1/101+1/102+...........+1/200
A=1/101+1/102+1/103+...1/200 chung minh rang 5/8<A<3/4
Chứng minh rằng ; 1-1/2+1/3-1/4+...+1/199-1/200=1/101+1/102+000+1/200
Chứng minh rằng :
1-1/2+1/3-1/4+.......+1/199-1/200 = 1/101+ 1/102+.......+1/200
Chứng minh rằng:
1 - 1/2 + 1/3 -1/4 + ... + 1/199 - 200= 1/101 + +1/102 + 1/103 + ... + 1/200
chứng minh rằng :1-1/2+1/3-1/4+...+1/199-1/200 = 1/101+1/102+1/103+1/104+...+1/200.
chung to raNG
1-1/2+1/3-1/4+.......................+1/199_1/200=1/101+1/102+............+1/2000
