Mathematics, 11.10.2020 23:01 brownvester44

The sum of the first n positive integers is 1/2 (n^2+ n ) . Check the expression for the first 5 positive integers. Then use the expression to find the sum of the first 14 positive integers.

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The sum of the first n positive integers is 1/2 (n^2+ n ) . Check the expression for the first 5 pos...