Q. The sum of the first three terms of an A.P. is 36. If the commondifference is positive and the third term is 3 times the first, thecommon difference of the A.P. is
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the formula to find the common difference of an arithmetic sequence is: d = a(n) - a(n - 1), where a(n) is the last term in the sequence, and a(n - 1) is the previous term in the sequence
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