14/15+34/35+62/63+98/99+142/143+194/195+254/255+322/323+398/399+482/483=?
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14/15+34/35+62/63+98/99+142/143+194/195+254/255+322/323+398/399+482/483=?
14/15+34/35+62/63+98/99+142/143+194/195+254/255+322/323+398/399+482/483=?
14/15+34/35+62/63+98/99+142/143+194/195+254/255+322/323+398/399+482/483=?
每一项变成1-一个数.如14/15=1-1/15
然后原式=10-1/15-1/35-1/63-.-1/483
=10-1/(3*5)-1/(5*7)-.-1/(21*23)
=10-1/2(1/3-1/5+1/5-1/7+.+1/21-1/23)
=10-1/2*(20/69)
=680/69
2/3+14/15+34/35+62/63+98/99=
2/3+14/15+34/35+62/63+98/99+142/143=?
简便计算 2/3+14/15+34/35+62/63+98/99=
2∕3+14/15+34/35+62/63+98/99+142/143
7/8+23/24+47/48+79/80+14/15+34/35+62/63+98/99=?
14/15+34/35+62/63+98/99+142/143+194/195+254/255+322/323+398/399+482/483=?
1.简便计算.2.在含盐30%的盐水中加入6克盐14克水,这时,盐水含盐的百分比是多少?2/3+14/15+34/35+62/63+98/99=
简算(要有过程)(1)1/12+1/20+1/30+1/42+1/56+1/72+1/90+1/110+1/132(2)1/1*5+1/5*9+1/9*13+...+1/97*101(3)2又1/2*5+4又1/5*8+6又1/8*11+...+102又1/152*155(4)1/4+30又1/28+50又1/70+70又1/130+90又1/208(5)14/15+34/35+62/63+98/99+142/1
98版五笔字根表:42 52 13 23 33 43 53 14 24 34 44 54 15 25 35 45 55
八阶幻方1 2 59 60 61 62 7 89 10 54 53 52 51 15 1617 47 25 39 38 28 46 2044 22 36 30 31 33 23 4124 42 32 34 35 29 43 2145 19 37 27 26 40 18 4856 55 11 12 13 14 50 4964 63 6 5 4 3 58 57本幻方奇特之处不仅是横竖相同,而且中间有个
数字排列组合1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 这些数字用11个组一组.能排多少组
用matlab拟合下面一组数据的曲线x=[1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 7
C语言循环应用使用循环函数,输出以下信息:1 2 3 4 5 6 7 8 9 1011 12 13 14 15 16 17 18 19 2021 22 23 24 25 26 27 28 29 3031 32 33 34 35 36 37 38 39 4041 42 43 44 45 46 47 48 49 5051 52 53 54 55 56 57 58 59 6061 62 63 64 65 66 67 68 69
VB 下面的公式,BZX_A = Cells(14,16)XBZX_A = Cells(61,35)BZX_B = Cells(15,16)XBZX_B = Cells(62,35)BZX_C = Cells(16,16)XBZX_C = Cells(63,35)BZX_D = Cells(17,16)XBZX_D = Cells(64,35)BZX_E = Cells(18,16)XBZX_E = Cells(65,35)BZX_F = Cells(19,16)XBZX_F
各行各列之和相等,怎么填数字?e 99 1 8 15 67 74 51 g 40 98 80 7 14 16 i h 57 64 41 4 81 f 20 22 54 56 63 j 47 85 l 19 21 3 60 62 k 71 28 m a 25 2 9 61 68 u 52 34 17 24 76 n 90 42 49 26 33 t 23 5 82 b o 48 30 32 39 66 79 6 13 95 p 29 31 38
找规律第一组54,26,14,62 第二组48,28,63,29 第三组123,( )98,89 第四组42,29,( ),37
34÷35×36=?98×97分之96=?42×括号14分之19-21分之8括号=?
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