Math, asked by krishtigerian, 7 months ago

find the sum of first 25 terms of the arthemetic sequence 11, 23,33

Answers

Answered by 1980pragatiagarwal

1

your answer

a=11

d=22-11=11

n=25

sn=n/2(2a+(n-1)d)

25/2(2(11)+24(11))

25/2(22+264)

25/2(286)

25×143

3575

I hope, it will help you

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