Question: What is the sum of integers from 1 to n? Justify your formula with a proof.SolutionDefinition of integers: They are known as whole numbers, for example, -2, -1, 0, 10 , 20. Theyare all integers.Regarding to your question, you are finding the sum of inters, from1, 2 , 3, 4, 5, nThis is a test of your concept on Arithmetic Progression, where a pattern is observed for acommon difference, d, between subsequent numbers.Let represent the term:1 = 12 = 23 = 3Realise that this is an Arithmetic Progression as there is a common difference d of ...
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