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阅读材料因为1/(1*3)=1/2(1-1/3),1/(3*5)=1/2(1/3-1/5)1/(5*7)=1/2(1/5
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相关问题
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因为1/1*3=1/2*(1-1/3),1/3*5=1/2*(1/3-1/5),1/5*7=1/2*(1/5-1/7),
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先阅读,1\1×3=1\2(1-1\3),1\3×5=1\2(1\3-1\5),1\5×7=1\2(1\5-1\7)
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阅读下列材料: 1 1×3 = 1 2 (1- 1 3 ) , 1 3×5 = 1 2 ( 1 3 - 1 5 ) ,
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1/(3+3^1/2)+1/(5*3^1/2+3*5^1/2)+1/(7*5^1/2+5*7^1/2)+...+1/(4
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1/1*3=(1-1/3)*1/2;1/3*5=(1/3-1/5)*1/2;1/5*7=(1/5-1/7)*1/2 利用
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已知2/(1*3)=1-1/3,2/(3*5)=1/3-1/5,2/(5*7)=1/5-1/7,...,
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观察下列各式:1/1*3=1/2(1-1/3),1/3*5=1/2(1/3-1/5),1/5*7=1/2(1/5-1/7
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(1+1/2+1/3+1/5)*(1/2+1/3+1/5+1/7)-(1+1/2+1/3+1/5+1/7)*(1/2+1
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1/1,-1/3,2/3,-3/3,1/5,-2/5,3/5,4/5,5/5,-1/7,2/7,-3/7,4/7,-5/
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观察下列格式:1/1*3=1/(1-1/3),1/3*5=1/2(1/3-1/5),1/5*7=1/2(1/5-1/7)