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# a pentagonal number is defined as n(3n-1)/2n for n=1,2.... Using method

2 Answers

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Yes number is defined so what we can do?
If you are asking for code then you should try first.

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Your work first?

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2 Answers

+ 3

Yes number is defined so what we can do?
If you are asking for code then you should try first.

+ 1

Your work first?