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Sir can you please write, not prove it actually the above quest in terms of n,p,r and P

Answers (1)

@Agnibh Chakraborty ( 9831045936 )

i am confused with language of your question, is p included in  n or not. and if not ,p particular things seems to be identical.

in such questtions we need to see options, but the max i understood the question,

the answer is - if p is from n -

nP(r-p) * rPp

 

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Kshitij

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