CMR : 1/3+1/5+1/13+1/14+1/15+1/61+1/62+1/63<5/6
s= 1/5+1/13+1/14+1/15+1/61+1/62+1/63.CMR:3/7<S<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
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
Chứng minh S = 1/5 +1/13+ /14+1/15+1/61+1/62+1/63 < 1/2
