1/2+1/4+1/8+1/16+1/32+1/64= 1+1/2+1/4+1/8+1/16+...+1/512=
问题描述:
1/2+1/4+1/8+1/16+1/32+1/64= 1+1/2+1/4+1/8+1/16+...+1/512=
答
1/2+1/4+1/8+1/16+1/32+1/64=1-1/64=63/64
1+1/2+1/4+1/8+1/16+...+1/512=2-1/512=1023/512