八分之九八..
(1/2-1/4)+(1/4-1/6)+(1/6-1/8)+...+(1/48-1/50)=
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相关问题
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奥数题1/2*4+1/4*6+1/6*8.+1/48*50=?
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2*1/4+4*1/6+6*1/8+8*1/10.+48*1/50怎样简算?
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1/2x4+1/4x6+1/6x8+……+l/48x50
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1/2×3+1/4×6+1/6×8+…+1/48×50
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计算,1/2x4+1/4x6+1/6x8+.+1/48x50=?,1/2+1/6+1/12+1/20+1/30+1/42
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1/2*2-1+1/4*4-1+1/6*6-1+...+1/50*50-1
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1/2+(1/2+4)+(1/2+4+6)+……+(1/2+4+6+……+50)=?
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奥数题,请写清步骤(1)1/(2*4)+1/(4*6)+1/(6*8)+……+1/(48*50)(2)水果店进来一批梨和
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1/1*2+1/2*3+1/3*4+1/4*5+1/5*6+1/6*7+1/7*8...1/49*50
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s=1/2+1/(2+4)+1/(2+4+6)+1/(2+4+6+8)+...+1/(2+4+6+8+...+2n)=?