Find the sum of a Finite arithmetic sequence n=1 to n=18 using the expression 4n-10

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Ulises Carson

Mathematics

9 February, 02:38

Find the sum of a Finite arithmetic sequence n=1 to n=18 using the expression 4n-10

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Rodney Waters · Answer 1

Find the sum of a Finite arithmetic sequence n=1 to n=18 using the expression 4n-10. The sum is 442 using the formula 4n-10 and substituting the n values and then adding up the results arithmetically and finding that the values go up by 4 each time. The first two values are - 6 and - 2 and then the values are positive after that.