1.1,1,2,2,3,4,3,5,( ) A.7 B.6 C.5 D.42.5,5,14,38,87,( ) A.167 B.168.C.169 D.170
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1.1,1,2,2,3,4,3,5,()A.7B.6C.5D.42.5,5,14,38,87,()A.167B.168.C.169D.1701.1,1,2,2,3,4,3,5,()A.7B.6C.5D
1.1,1,2,2,3,4,3,5,( ) A.7 B.6 C.5 D.42.5,5,14,38,87,( ) A.167 B.168.C.169 D.170
1.1,1,2,2,3,4,3,5,( ) A.7 B.6 C.5 D.42.5,5,14,38,87,( ) A.167 B.168.C.169 D.170
1.1,1,2,2,3,4,3,5,( ) A.7 B.6 C.5 D.42.5,5,14,38,87,( ) A.167 B.168.C.169 D.170
一B.二A.第一题别人说的很清楚了.第二题思路如下:5,5,14,38,87其之间差值为0,9,24,49规律:1*2-1,3*,5*-1,7*,9*-1可得出最后两个数差值为8080+87=167"
习题1.1 1,2,3,4,5 题
15/2除以(1.1-4/3)+5/1乘以5/3,等于多少
找规律,--1.1/2,--1/3,1/4,--1/5,1/6 .第n个数是?
1.1/1*2+1/2*3+1/3*4+……+1/99*100 2.2/1*3+2/3*5+2/5*7+……+2/97*99
求最简单的整数比1.1/6:1/7:1/8 2,3/4:2/5:2/3
使等式得1.1 2 3 4 5 6 7 8 =1
x=1,2,3,4,5 y=0.4,0.7,1.1,1.4,1.6
比大小 1.1×9分之5( )3分之2 4.6×4分之1( )2分之3
求解数字推理题:1.1/3,1/2,3/5,2/3,5/7( ) A,8/9 B,3/4 C,1 D,7/8 (为什么选B)
等比数列1.1/1*2 +1/2*3 +1/3*4+...+1/99*100的值是多少?
(+0.65)+(-1.9)+(-1.1)+(-3/20)+5又2/3+(-2又1/3)
1.1-3+5-7+9-11+.4997-4999=?2.1/2,1/3,2/3,1/4,2/4,3/4,1/5,2/5.3/5,4/5.第2008个分数是?第二题呢?
1.1/2+1/3+2/3+1/4+2/4+3/4+1/5+2/5+3/5+4/5+...+49/502.19+9又1/2+7又1/4+3又1/8+8又1/16+4又1/323.(1+1/2+1/3+1/4)*(1/2+1/31/4+1/5)-(1+1/2+1/3+1/4+1/5)*(1/2+1/3*1/4)
1.1/1*2+1/2*3+1/3*4+……+1/n(n+1) 2.1/1*3+1/3*5+1/5*7+……+1/(2n-1)*(2n+1)
分式数列1.1/4,2/7,2/5,8/13,1,()9/16,3,32/19,28/172.1,3,4,1,9,()5,11,14,64
1.1*2*3+2*3*4+.+100*101*102= 2.1*2*3*4+2*3*4*5+.+n(n+1)(n+2)(n+3)=貌似问题看不清楚 偶再打一遍第一题:1*2*3+2*3*4+......+100*101*102=?第二题:1*2*3*4+2*3*4*5+.......+n(n+1)(n+2)(n+3)=
1.1/2>(1/2+1/4+...+1/2n)/n (n>=2)2.1/(n+1)(1+1/3+1/5+,+1/(2n-1))>1/n(1/2+1/4+,+1/2n) (n>=2)
解方程3/2[2/3(x/4-1)-2]-x=2 ( 1.1-4x)/0.6-(1.3-3x)/0.2=(5x-0.4)/0.3解方程3/2[2/3(x/4-1)-2]-x=2 ( 1.1-4x)/0.6-(1.3-3x)/0.2=(5x-0.4)/0.3有两题