Cho S=1/31+1/32+1/33+1/34+...+1/60
Chứng minh rằng:3/5<S<4/5
Cho S=1/31+1/32+1/33+1/34+...+1/60
Chứng minh rằng:3/5<S<4/5
Cho S=1/31+1/32+1/33+1/34+...+1/60
Chứng minh rằng:3/5<S<4/5
Chó S=1/31+1/32+1/33+1/34+...+1/60
Chứng minh rằng:3/5<S<4/5
Cho S=1/31+1/32+1/33+1/34+...+1/60
Chứng minh rằng:3/5<S<4/5
Giải hộ mik nha
Cho S=1/31+1/32+1/33+1/34+...+1/60
chứng minh S<\(\frac{4}{5}\)
Cho S= 1/31 + 1/32 + 1/33 +....+ 1/59 + 1/60. CMR 3/5<S<4/5
Cho S = 1/31+1/32+1/33+.......+1/60.Chứng minh 3/5 < S < 4/
Cho S = 1/31+1/32+1/33+..............+1/60. CMR: 3/5 < S < 4/5
