1/2-(1/2-1/4)-(1/4-1/8)……-(1/512-1/1024)
1/2+1/4+1/8……+1/256+1/512+1/1024 简便计算,
1/2+1/4+1/8+……+512/1+1024/1 的简算
1.1/2+1/4+1/8+1/16+1/32+1/64+……+1/512+1/1024=
1024+512+256+.+2+1+2/1+4/1+8/1+.512/1+1024/1
1 1/1024+2 1/512+3 1/256+4 1/256+……+256 1/4+512
1\1024+1\512+1\256+...+1\2+1+2+4+8+...+1024
计算:1/2+1/4+1/8+1/16+………+1/1024
1/2+1/4+1/8+1/16+1/32……+1/1024
2/1+4/1+8/1+16/1+32/1……+1024/1=
1/2+(-1/4)+(-1/8)+(-1/16)+…+(-1/256)+(-1/512)+(-1/1024)
1/2+1/4+1/8+1/16……+1/512=(),等于多少啊,
1-1/2-1/4-1/8-1/16-1/32-1/64……-1/1024