Math, asked by ansonjoshwin, 4 months ago

8th term of an arithmetic sequence is 25 what is the sum of 1st 15 terms

Answers

Answered by Anonymous
4

Answer:

All we have to do now is to apply the formula sn=n2(2a+(n−1)d)) to determine the sum of the sequence. Thus, the sum of the first fifteen terms in the arithmetic sequence is 975

Step-by-step explanation:

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