Question

the sum of n positive integers is given​

Answer 1

Answer:

For any positive integer n, the sum of the first n positive integers equals n(n+1)/2.

Note that the formula n(n+1)/2 is used only for adding n consecutive integers starting from 1. A problem may not directly ask you for this but if you can break it down such that you have to find the sum of 'n consecutive integers starting from 1' then you can use this formula.

Answer 2

Answer:

For any positive integer n, the sum of the first n positive integers equals n(n+1)/2.

Step-by-step explanation:

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