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Questions and Answers
What is the general formula for the nth term of an arithmetic progression?
$a_n = a_1 + (n-1)d$
If the 5th term of an arithmetic progression is 23 and the 10th term is 38, what is the common difference?
3
What is the sum of the first 15 terms of an arithmetic progression where the first term is 8 and the common difference is 4?
330
