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1-1/2-1/4-1/8-1/16-1/32=?1/2+1/6+1/12+1/20+1/1-1/2-1/4-1/8-1/16-1/32=?1/2+1/6+1/12+1/20+1/30=?
题目详情
1-1/2-1/4-1/8-1/16-1/32=?1/2+1/6+1/12+1/20+1/
1-1/2-1/4-1/8-1/16-1/32=?1/2+1/6+1/12+1/20+1/30=?
1-1/2-1/4-1/8-1/16-1/32=?1/2+1/6+1/12+1/20+1/30=?
▼优质解答
答案和解析
=1-(16/32+8/32+4/32+2/32+1/32) 2. =1/(1x2)+1/(2x3)+1/(3x4)+1/（4x5)+1/(5x6)
=1-30/32 =1-1/2+1/2-1/3+1/3-1/4+1/4-1/5+1/5-1/6
=1/16 =1-1/6
=5/6
大概就是这样了
=1-30/32 =1-1/2+1/2-1/3+1/3-1/4+1/4-1/5+1/5-1/6
=1/16 =1-1/6
=5/6
大概就是这样了
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