[/quote]
What is the significance of "If n is a positive integer" in this question? Would we not cancel (n+1) if n is not a positiveinteger?[/quote]
We would but after getting\(n(n-1)=240\) we wouldn't be able to use the logic in highlighted part because if it were given that n is an integer, then\(n-1\) and\(n\) might not be consecutive integers and we would be left with quadratics to solve. We'd get the same answerthough.[/quote]
Thank you. This helps![Image]()
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What is the significance of "If n is a positive integer" in this question? Would we not cancel (n+1) if n is not a positiveinteger?[/quote]
We would but after getting\(n(n-1)=240\) we wouldn't be able to use the logic in highlighted part because if it were given that n is an integer, then\(n-1\) and\(n\) might not be consecutive integers and we would be left with quadratics to solve. We'd get the same answerthough.[/quote]
Thank you. This helps
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