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2. What is the sum of the first 15 terms of this sequence? {1, 8, 15, 22, ...} 3. How many terms of the arithmetic sequence {2,4,6,8,...} will give a sum of 600? 4. How many terms of the arithmetic sequence 113.57​

Sagot :

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Answer:

2.) 1,8,15,22,29,36,43,50,57,64,71,78,85,92,99,106,113,120,127

common difference po is 7