Các câu hỏi tương tự
chứng minh rằng a 1/4 +1/16+1/36+1/64+1/100+1/144 +1/196+......+1/10000 <1/2
Cho A= 1/4+1/16+1/36+...+1/10000
Chứng minh: A<1/2
chứng minh rằng:\(\frac{1}{4}+\frac{1}{16}+\frac{1}{36}+\frac{1}{64}+\frac{1}{100}+...+\frac{1}{10000}
CMR:
1/4+1/16+1/36+....+1/10000<1/2
chứng tỏ rằng 1/4+1/16+1/36+1/64+...+1/10000<1/2
CMR : 1/4 + 1/16 + 1/36 + 1/64 + 1/100 + 1/144 + ... + 1/10000 < 1/2
chung minh rang
a)1/2^2+1/3^2+1/4^2+...+1/8^2<1
b)1/4+1/16+1/36+1/64+...+1/196<1/2
1+4+9+16+25+36+...+10000
Cho A= 26/25 + 37/36 + 50/49 +...+ 10001/10000 . Chứng minh rằng: 96/1/6 < A < 96/1/4