a=\(\frac{1}{2^2}+\frac{1}{3^2}+\frac{1}{4^2}+.....+\frac{1}{10^2}\)
a>\(\frac{1}{2.3}+\frac{1}{3.4}+\frac{1}{4.5}+.....+\frac{1}{10.11}\)
=\(\frac{1}{2}-\frac{1}{11}\)
Cho A=1/4+1/9+1/16+....+1/81+1/100.Chứng tỏ rằng:A>65/132
cho A= 1/4 + 1/9 + 1/16 +......+1/81 + 1/100 . Chứng tỏ rằng : A>65/132
Cho A=1/4+1/9+1/16+.....+1/81+1/100.
Chứng tỏ A>65/132
Cho A = 1/4 + 1/9 + 1/16 + ... + 1/81 + 1/100. Chứng tỏ rằng A > 65/132
Cho A = 1/4+1/9+1/16+...+1/81+1/100
CHỨNG TỎ RẰNG. A>65/132
Cho A=1/4+1/9+1/16+...........+1/81+1/100 Chứng tỏ A>65/132
Cho A = \(\frac{1}{4}+\frac{1}{9}+\frac{1}{16}+...+\frac{1}{81}+\frac{1}{100}\)
Chứng tỏ rằng : A > \(\frac{65}{132}\)
Help meeee !!!
Cho A=1/4+1/9+1/16+...+1/81+1/100
CMR A>65/132
A= 1/4+1/9+1/16+...+1/81+1/100.Chung to A>65/132
