1/2+3/4+7/8+15/13+31/32+63/64=
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1/2+3/4+7/8+15/13+31/32+63/64=
1/2+3/4+7/8+15/13+31/32+63/64=
1/2+3/4+7/8+15/13+31/32+63/64=
6-1/2-1/4-1/8-1/16-1/32-1/64=6-31/32=159/32式中15/13应该是15/16吧,那样的话1/2+3/4+7/8+15/16+31/32+63/64=1-1/2+1-1/4+1-1/8+1-1/16+1-1/32+1-1/64=6-(1/2+1/4+1/8+1/16+1/32+1/64)=6-63/64=5又1/645.23197115385结果肯定是127/128
1/2+3/4+7/8+15/13+31/32+63/64=
1/2+3/4+7/8+15/13+31/32+63/64=
1/2+3/4+7/8+15/13+31/32+63/64=
1/2+3/4+7/8+15/13+31/32+63/64=
1/2+3/4+7/8+15/13+31/32+63/64=
1/2+3/4+7/8+15/13+31/32+63/64=
1/2+3/4+7/8+15/13+31/32+63/64=
2,3,5,8,13,21,( ) 1,4,9,16,( ) ,() 1,3,7,15,31,(),127,255,
⒈(15/2+15/4-15/7-15/8)/(31/2+31/4-31/7-31/8)=?⒉3/2-17/6+37/12-99/20+151/30-293/42+393/56-647/72+811/90=?⒊1/(11*13*15)+1/(13*15*17)+…+1/(29*31*33)=?
通项公式(1) 1/2,3/4,7/8,15/16,31/32 (2)2/3,-1,10/7,-17/9,26/11,-37/13
2,1,4,3,6,9,8,27,10,( )1,1,3,7,13,( ),311,3,7,15,31,( ),127,2550,3,8,15,24,( ),48,631,2,2,4,3,8,4,16,5,( )(要写出规律)
1+1/2+3/4+7/8+15/10+31/32+63/64简便算法
1、 2、4、8、( )32 1、3、7、15、31、( )
0,1,3,2,6,7,5,4,12,13,15,14,10,11,9,8,24,25,27,26,30,31的规律在线等
1/2+3/4+7/8+15/16+31/32+63/64=?简便方法!
2/1+4/3+8/7+16/15+32/31+64/63+.+128/127
1/2+3/4+7/8+15/16+31/32+63/64+127/128的答案
1/2+3/4+7/8+15/16+31/32+63/64=127/128=?