TA có:
1/12>1/13
1/12>1/14
1/12>1/15
=>1/12.3=1/4>1/13+1/14+1/15
1/60>1/61
1/60>1/62
1/60>1/63
=>1/60.3=1/20>1/61+1/62+1/63
=>1/5+1/4+1/20> 1/5+1/13+1/14+1/15+1/61+1/62+1/63
=>1/2> 1/5+1/13+1/14+1/15+1/61+1/62+1/63
chứng minh rằng s=1/5+1/13+1/14+1/15+1/61+1/62+1/63<1/2
chứng minh rằng: S=1/5+1/13+1`/14+1/15+1/61+1/62+1/63<1/2
Chứng minh rằng ; S = 1/5+1/13+1/14+1/15+1/61+1/62+1/63 < 1/2
ai nhanh nhất mình sẽ tick cho đấy
chứng minh 1/5+1/13+1/14+1/15+1/61+1/62+1/63 < 1/2
Chứng minh S = 1/5 +1/13+ /14+1/15+1/61+1/62+1/63 < 1/2
Chứng minh
a=1/5+1/13+1/14+1/15+1/61+1/62+1/63<1/2
Chứng minh
S= 1/5+1/13+1/14+1/15+1/61+1/62+1/63<1/2
Chứng minh rằng \(S=\frac{1}{5}+\frac{1}{13}+\frac{1}{14}+\frac{1}{15}+\frac{1}{61}+\frac{1}{62}+\frac{1}{63}
CHO 1/5+1/13+1/14+1/15+1/61+1/62+1/63
cHỨNG minh 3/7<S<1/2
