Identify type of series: Identify the type of series.The series 2017, 2018, ..., 2024 is an arithmetic series because the difference between consecutive terms is constant.
Find first and last term: Find the first term a1 and the last term an of the series.The first term a1 is 2017 and the last term an is 2024.
Calculate number of terms: Calculate the number of terms n in the series.Since the series is consecutive integers from 2017 to 2024, we can find the number of terms by subtracting the first year from the last year and adding 1.n=2024−2017+1n=7+1n=8
Use formula for sum: Use the formula for the sum of an arithmetic series.The sum Sn of the first n terms of an arithmetic series is given by:Sn=2n∗(a1+an)
Substitute values into formula: Substitute the values into the formula to find the sum.S8=28×(2017+2024)S8=4×(4041)S8=16164
Verify the result: Verify the result.To check for a math error, we can quickly verify by adding the first and last term to see if it matches the sum we used in the formula:2017+2024=4041Since this matches the sum we used in the formula, it seems we have not made a math error.
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