1/2+1/4+1/8+1/16+1/32+.+1/128=
问题描述:
1/2+1/4+1/8+1/16+1/32+.+1/128=
答
1/2+1/4+1/8+1/16+1/32+.+1/128= 1-1/128=127/128
1/2+1/4+1/8+1/16+1/32+.+1/128=
1/2+1/4+1/8+1/16+1/32+.+1/128= 1-1/128=127/128