1/3+1/8+1/15+1/24+.1/9800
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1/3+1/8+1/15+1/24+.1/98001/3+1/8+1/15+1/24+.1/98001/3+1/8+1/15+1/24+.1/9800原式=[1/(1×3)+1/(3×5)+.+1/(
1/3+1/8+1/15+1/24+.1/9800
1/3+1/8+1/15+1/24+.1/9800
1/3+1/8+1/15+1/24+.1/9800
原式=[1/(1×3)+1/(3×5)+.+1/(97×99)]+[1/(2×4)+1/(4×6)+.+1/(98×100)]
=(1-1/3+1/3-1/5+1/5-1/7+.+1/97-1/99)+(1/2-1/4+1/4-1/6+.+1/98-1/100)
=1-1/99+1/2-1/100
=14651/9900
1/3+1/8+1/15+1/24+.1/9800
(1+1/3)*(1+1/8)*(1+1/15)*(1+1/24)*.*(1+1/9800)
1,3,8,15,24,( ).
1/3+1/8+1/15+1/24+1/35+...+1/80+1/99 怎么解
1/3 1/8 1/15 1/24 ...1/80 1/99
1/3+1/8+1/15+1/24+1/35+1/48
1/3,-1/8,1/15,-1/24,1/35,-1/48怎样找规律
1/3+1/8+1/15+1/24+1/35+.1/9999=
找规律.1,3,8,15,24,( ).
1/3+1/8+1/15+1/24+1/35+1/48+1/63+1/80+1/99怎么求
1/3+1/8+1/15+1/24……+1/320
(1-3/8)*(1-3/15)*(1-3/24)*.*(1-3/99)谢谢了,急..
8/1+15/1+24/1+```````+143/1
1/8+1/24+1/48+1/80+1/120的简便算法1/3+1/15+1/35+1/63+1/99+1/143
-1/3 1/8 -1/15 1/24 的通项公式是?速度!
数列1/3,1/8,1/15,1/24的一个通项公式为
求-1/3,1/8,-1/15,1/24的通项公式
-1/3,1/8,-1/15,1/24的通项公式