Đúng là nhỏ hơn thật.
\(\frac{1}{31}+\frac{1}{31}+\frac{1}{35}+\frac{1}{37}+\frac{1}{41}+\frac{1}{53}+\frac{1}{61}\approx0,179766195684405\)
và nhỏ hơn \(\frac{1}{2}\)
chứng minh rằng: 1/3+1/31+1/35+1/37+1/47+1/53+1/61<1/2
Chứng minh rằng:
1/3 + 1/31 + 1/35 + 1/37 + 1/47 + 1/53 + 1/61<1/2
Chứng minh rằng:
1/3 + 1/31 + 1/35 + 1/37 + 1/47 + 1/53 + 1/61< 1/2
Chứng minh rằng
1/3+ 1/31+1/35+1/37+1/47+1/53+1/61<1/2
chung minh rang;
1/3 +1/31 +1/35 +1/37 +1/47 +1/53 +1/61 <1/2
chung minh rang
1/3+1/31+1/35+1/37+1/47+1/53+1/61<1/2
Chứng minh rằng:
\(\frac{1}{3}+\frac{1}{31}+\frac{1}{35}+\frac{1}{37}+\frac{1}{47}+\frac{1}{53}+\frac{1}{61}< \frac{1}{2}\)
Chứng minh rằng:
\(\frac{1}{3}+\frac{1}{31}+\frac{1}{35}+\frac{1}{37}+\frac{1}{47}+\frac{1}{53}+\frac{1}{61}\le\frac{1}{2}\)
Chứng minh:
\(\frac{1}{3}+\frac{1}{31}+\frac{1}{35}+\frac{1}{37}+\frac{1}{47}+\frac{1}{53}+\frac{1}{61}< \frac{1}{2}\)
