Chứng tỏ rằng:A=1/4+1/16+1/36+1/64+...+1/576<1/2
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+1/64+1/100+1/144+1/196. Chứng minh rằng A < 1/2
Chứng minh rằng A = 1/4+1/16+1/36+1/64+1/100+1/144+1/196+1/256+1324 < 1/2
chứng minh rằng
1/4+1/16+1/36+1/64+1/100+1/144+1/196<1/2
Chứng minh rằng: 1/4 + 1/16 + 1/36 + 1/64 + 1/144 + 1/19 < 1/2
Chứng minh rằng 1/4 + 1/16 + 1/36 + 1/64 + 1/100 + 1/144 +1/196 + ... + 1/10. 000<1/2
Chứng minh rằng 1/4 + 1/16 + 1/36+ 1/64 + 1/100 + 1/144 + 1/196 + ... + 1/10. 000 <1/2
Chứng minh A = 1/4 + 1/6 + 1/36 + ....... + 1/576 < 1/2