Cho M = 1/15+1/105+1/315+.............+1/9177. So sánh M với 1/2
Cho M= 1/15 +1/105 + 1/315+...+ 1/1977. So sanh M vs 12.
1) Cho M=\(\frac{1}{15}\)+\(\frac{1}{105}\)+\(\frac{1}{315}\)+...+\(\frac{1}{9177}\)
So sánh M với \(\frac{1}{12}\)
cho M= 1/15+1/105+1/315+...+ 1/1997. So sanh M vs 12
Cho M= 1/15 + 1/105 + 1/315+....+1/9177. So sanh M vs 12.
Help me!
M=\(\frac{1}{15}\)+\(\frac{1}{105}\)+\(\frac{1}{315}\)+...+\(\frac{1}{9177}\)
So sánh M với \(\frac{1}{12}\)
tính tổng sau 1/15+1/105+1/315+..+1/2145
cho M = 1/10 + 1/15 + 1/21 + 1/28 + ....+ 1/105 + 1 /120.Chung to 1/3 < M < 1/2
cho M=1/5+1/13+1/14+1/15+1/61+1/62+1/63. Hãy so sánh M với 1/2
