问题
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:[6/(1×7)]-[6/(7×13)]-[6/(13×19)]-[6/(19×25)]-……-[6/(97×103)]= ()A.433/567B.532/65
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1/4, 2/5, 5/7, 1, 17/14, () A、25/17 B、26/17 C、25/19 D、26/19
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2,5,11,23,47,() A.71 B.67 C.97 D.95
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[6/(1×7)]-[6/(7×13)]-[6/(13×19)]-[6/(19×25)]-……-[6/(97×103)]= () A.433/567B.
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1/4,2/5,5/7,1,17/14,()A.25/17 B.26/17 C.25/19 D.26/19
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2,5,11,23,47,()A.71 B.67 C.97 D.95