[R] how to find the minimum

[Bin Yue]

Dear friends:
     I am a new R user, and not very good at statistics and maths
     I find it difficult to find the minimum of this item:
     ((p*(b-1)-1)*(p+1)^(b-1)+1)/p^2

    It seems that the method optim can find the minimum. I tried several
times , but R constanly tells that " failure to find b or p"
    Would you please give some suggestions?
    Thanks in advance.
    Best wishes,
    Bin Yue 

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Best regards,
Bin Yue

*************
student for a Master program in South Botanical Garden , CAS

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