Math, asked by seenanajeemkmr, 10 days ago

Find the sum of first 25th terms of the sequence 12,23,34..

Answers

Answered by aletisnehith

1

Answer:

a = 12

d = 23-12 = 11

Sn =

Here, n = 25

∴ S25 =

= 25× 24× 6

= 3600

Step-by-step explanation:

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