问题标题:
2×[-(3/2)]×(4/3)×[-(5/4)]……×[-(51/50)]2×[-(3/2)]×(4/3)×[-(5/4)]……×[-(51/50)]=?
问题描述:
2×[-(3/2)]×(4/3)×[-(5/4)]……×[-(51/50)]
2×[-(3/2)]×(4/3)×[-(5/4)]……×[-(51/50)]=?
庞新富回答:
-27对否
我用vb6
PrivateSubCommand1_Click()
DimansAsInteger
Fori=2To50Step2
ans=ans+(-(i+1)/i)*((i+2)/(i+1))
Nexti
MsgBoxans
EndSub
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