The difference of AP
Find the difference d in an AP (arithmetic progression) whose 5th term is 18 and 39th term is 120.
Correct answer:
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Related math problems and questions:
- The common difference
Find the common difference of an arithmetic progression (AP), whose 1st term is 5 and the sum of its 1st 4 terms is half the sum of the next four terms. - AP Formula Use the Arithmetic Sequence Formula to find the 120th term of this sequence: 3, 6, 9, 12, 15, 18, ...
- The common difference 2
Find the common difference of an arithmetic progression (AP), whose first term is 5 and sum of its first 4 terms is half the sum of the next four terms. - The sum 39 The sum of the first six terms of the arithmetic sequence is 72, and the second term is seven times the fifth term. Find the first term and the AP difference.
Find the sum of the first 12 terms of the arithmetic sequence whose general term is an=3n+5.
Determine the difference between members of AP and find the third term: 7; 3.6;...