1-1/2-1/4-1/8-1/16-1/32-.-1/1024
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1-1/2-1/4-1/8-1/16-1/32-.-1/1024
1-1/2-1/4-1/8-1/16-1/32-.-1/1024
=1-(1/2+1/4+1/8+.+1/1024)
=1-(512+256+128+64+32+16+8+4+2+1)/1024
=1-1023/1024
=1/1024
再问: 1-(512+256+128+64+32+16+8+4+2+1)/1024 这一步是什么意思
再答: 1/2+1/4+1/8+.......+1/1024 =512/1024+256/1204+128/1024+.....+1/1024 (这一步是通分) =(512+256+128+64+32+16+8+4+2+1)/1024 =1023/1024
=1-(1/2+1/4+1/8+.+1/1024)
=1-(512+256+128+64+32+16+8+4+2+1)/1024
=1-1023/1024
=1/1024
再问: 1-(512+256+128+64+32+16+8+4+2+1)/1024 这一步是什么意思
再答: 1/2+1/4+1/8+.......+1/1024 =512/1024+256/1204+128/1024+.....+1/1024 (这一步是通分) =(512+256+128+64+32+16+8+4+2+1)/1024 =1023/1024
求和:1/2+1/4+1/8+1/16+1/32+1/64+.+1/1024=?
1/2+1/4+1/8+1/16+1/32……+1/1024
1/2+1/4+1/8+1/16+1/32+1/64+.+1024=?
2/1+4/1+8/1+16/1+32/1……+1024/1=
1/2+1/4+1/8+1/16+...+1/1024
1-1/2-1/4-1/8-1/16-1/32-.-1/512-1/1024(简便计算)
1-1/2-1/4-1/8-1/16-1/32-1/64……-1/1024
1+2+4+8+16+32+...+1024求解答,
1+2+4+8+16+32+...+1024怎么算?
1+2+4+8+16+32+.+1024=?
1.1/2+1/4+1/8+1/16+1/32+1/64+……+1/512+1/1024=
1-1/2+1/4-1/8+1/16-1/32+1/64-1/128+1/256-1/512+1/1024-1/2048