s= 1/5+1/13+1/14+1/15+1/61+1/62+1/63.CMR:3/7<S<1/2
CMR: 1/5 + 1/13 +1/14 +1/15 +1/61 +1/62 + 1/63 < 1/2
CMR : S = 1/5+1/13+1/14+1/15+1/61+1/62+1/63 < 1/2
minh thach ai lam duoc bai nay
chứng minh rằng s=1/5+1/13+1/14+1/15+1/61+1/62+1/63<1/2
CM: 1/5+1/13+1/14+1/15+1/16+1/61+1/62+1/63<1/2
chứng minh 1/5+1/13+1/14+1/15+1/61+1/62+1/63 < 1/2
Chứng tỏ rằng : 1/5+1/13+1/14+1/15+1/61+1/62+1/63<1/2
CHO 1/5+1/13+1/14+1/15+1/61+1/62+1/63
cHỨNG minh 3/7<S<1/2
CMR : S = 1/5+1/13+1/14+1/15+1/61+1/62+1/63 < 1/2
Mình thách ai làm được bài này ai làm nhanh nhất mình tick nha
