dan ta phai biet su ta cai gi ko biet phai tra google
Đúng 0
Bình luận (0)
Các câu hỏi tương tự
Cho A=1/2^2+1/3^2+1/4^2+...+1/100^2. CMR: A<3/4
Cho P = 1/2^2 + 1/3^2 + 1/4^2 +...+ 1/100^2. CMR: P > 1/3
CMR:
a)1/10^2 +1/11^2+1/12^2+...+1/100^2 >3/4
b)1/2^2+1/3^2+1/4^2+...+1/100^2<99/100
c)1/2^2+1/3^2+1/4^2+...+1/100^2<3/4
cho E=1/2^2+1/3^2+1/4^2+...+1/100^2.CMR E<3/4
cho
A=1/2^2+1/3^2+1/4^2+...+1/100^2.CMR A<3/4
Bài 4 :
a,Cho A= 1/2!+1/3!+.....+1/100!
CMR A<1
b, CMR :1-1/2+1/3-1/4+...+1/99-1/100=1/51+1/52+....+1/100
Giúp mình với:
Cho A=1/1×2^2+1/2×3^2+1/3×4^2+...+1/99×100^2. CMR A<4/9
CMR:(1+1/2+1/3+1/4+...+1/100)=1/2=2/3+3/4+...+99/100
cho: D= 1/2^2 + 1/3^2 + ... + 1/100^2
CMR: D<3/4