1/3*5+1/5*7+1/7*9+………+1/101*103
=1/2[(1/3-1/5)+(1/5-1/7)+(1/7-1/9)+……+(1/101-1/103)]
=1/2[1/3-1/103]
=50/309
1/3*5+1/5*7+1/7*9+………+1/101*103的值
1个回答
相关问题
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1+3+5+7+9+……+101+103+105=?
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1/1*3*5+1/3*5*7+.1/99*101*103
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1/1*3+1/3*5+1/5*7+…+1/101*103怎么做?
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1+3+5+7...+99=?101+103+105.+199=?
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1+1/1*3+1/3*5+1/5*7+1/7*9+……+1/99*101=?
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1+2+3+4+5+6+7+8+9+10............101+102+103
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1×3×5+3×5×7+5×7×9+…+101×103×105=?
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计算1/3*1/5+1/5*1/7+1/7*1/9+1/9*1/11……1/99*1/101=?
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1/3*2/5+1/5*2/7+ 1/7*2/9+……+1/99*2/101
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1+3+5+7+9+11+.101=?