Cho S = 1/11+1/12+1/13+1/14+115+1/16+1/17+1/18+1/19+1/20
hãy so sanh S và 1/2
Cho S = 1/11 + 1/12 + 1/13 + 1/14 + 1/15 + 1/16 + 1/17 + 1/18 + 1/19 + 1/20.
Hay so sanh S va 1/2
CHO S = 1/5 + 1/13 +1/14 +1/15 +1/61 +1/62 +1/63. HÃY SO SÁNH S VÀ 1/2
GIÚP MIH`, MIH` TICK NHA
Cho tổng
S= 1/17+1/18+1/19+...+1/62+1/63+1/64
Chứng minh rằng 1<S<2
s= 1/5+1/13+1/14+1/15+1/61+1/62+1/63.CMR:3/7<S<1/2
chứng minh rằng s=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 rằng: S=1/5+1/13+1`/14+1/15+1/61+1/62+1/63<1/2
cho S=1\3+1\5+1\18+1\30+1\45+1\60+...+1\1485 so sanh S voi 3\5
