dairon04 dairon04

11-09-2020
Mathematics

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What is the sum of the arithmetic sequence 3, 9, 15 …, if there are 34 terms?

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LuckyG123 LuckyG123

11-09-2020

Lets subtract 3 from each term we get 0,6...

Now we have muplitles of 6

6*0

6*1

Now we can find last number whcich is 6*33=198

now use formula to find sum

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