(1*2*3*4*5*6*7*8*9*10*11)/(27*25*24*22)
2个回答
=(32*35*6)/(27/27*25*24*22/220)
=(32*35*6)/(1*25*24*0.1)
=(32*210)/(25*2+25*4)
=(32*210)/150
相关问题
(11*10*9*.*3*2*1)/(22*24*25*27)
1 2 9 10 25 26 ··· 4 3 8 11 24 27 ··· 5 6 7 12 23 26··· 17 1
1+2+3-4+5+6+7-8+9+10+11-12+……+25+26+27-28
1+2+3-4+5+6+7-8+9+10+11-12+···+25+26+27-28=?
1+2+3+4+5+6+7+8+9+10+11+14+15+16+17+18+19+20+21+22+23+24+25+
3/7+6/24,3/8+7/24,3/9+8/25,3/10+9/25,3/11+10/25,3/12+11/25,找
3/2,4/3,5/4,10/9,9/8 A:12/11,B:6/15,C:25/24,D:28/27
1*2*3+2*3*4+3*4*5+4*5*6+5*6*7+6*7*8+7*8*9+8*9*10+9*10*11+10*
求数列0,1,3,2,6,7,5,4,12,13,15,14,10,11,9,8,24,25,27,26,30,31……
1+2+3-4+5+6+7-8+9+10+11-12+.+25+26+27-28用简便方法计算