写的不清楚 按你上面写的答案是0 二分之一乘以二就是一 1-1=0
1/2*2-1+1/4*4-1+1/6*6-1+...+1/50*50-1
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相关问题
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1/2+(1/2+4)+(1/2+4+6)+……+(1/2+4+6+……+50)=?
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(1/2-1/4)+(1/4-1/6)+(1/6-1/8)+...+(1/48-1/50)=
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奥数题1/2*4+1/4*6+1/6*8.+1/48*50=?
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1/2²-1+1/4²-1+1/6²-1+.+1/50²-1怎么解,
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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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2*1/4+4*1/6+6*1/8+8*1/10.+48*1/50怎样简算?
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1-1/2+1/3-1/4+1/5-1/6+1/7.-1/50=?
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1/2+(1/2+1/3)+(1/4+2/4+3/4)+...+(1/50+2/50+3/50+...+48/50+49
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1+1/2+〔1/3+2/3〕+〔1/4+2/4+3/4〕+…+〔1/50+2/50+…49/50〕
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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