问题描述:
答好加150分
1-1/2+1/3-1/4+.+1/99-1/100
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1/(1+101)+1/(2+102)+1/(3+103)+1/(4+104)+.+1/(49+149)+1/(50+150)
1-1/2+1/3-1/4+.+1/99-1/100
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1/(1+101)+1/(2+102)+1/(3+103)+1/(4+104)+.+1/(49+149)+1/(50+150)
问题解答:
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