1/2+1/4+1/8+1/16+1/32+1/64=?
来源:百度知道 编辑:UC知道 时间:2024/06/08 14:38:12
1/2+1/4+1/8+1/16+1/32+1/64
=32/64+16/64+8/64+4/64+2/64+1/64
=(32+16+8+4+2+1)/64
=63/64
63/64
原式=1-1/2+1/2-1/4+1/4-1/8+1/8-1/16+1/16-1/32+1/32-1/64=1-1/64=63/64
1/2+1/4+3/4
1/2+1/4+1/8=7/8
1/2+1/4+1/8+1/16 =15/16
1/2+1/4+1/8+1/16+1/32=31/32
1/2+1/4+1/8+1/16+1/32+1/64=63/64
很有规律哦
1/2+1/4+1/8+{1/16+[1/32+(1/64+1/64)]}-1/64
=1/2+[1/4+(1/8+1/8)]-1/64
=1/2+1/2-1/64
=1-1/64
=63/64
(1+1/2+1/3+1/4)×
1+1/2+1+1/3+1+1/4+......+1/100=?
1/1+1/2+1/3+1/4+。。。。+1/N 是多少
1/1+1/2+1/3+1/4+......1/2002=?
1-1/2+1/3-1/4+........1/99-1/100
(1-1/2)(1-1/3)(1-1/4)(1-1/5).....(1-1/1000)
(1/2) (1/4+1/6)=
(1+1/2)(1+1/2^2)(1+1/2^4)(1+1/2^8)
(1-1/2^2)*(1-1/3^2)*(1-1/4^2).......(1-1/100^2)
s=1/1+1/1!+1/2!+1/3!+1/4!+....+1/25!