Math, asked by rajpt41blygmailcom, 1 year ago

find the sum of first 20 terms AP 3'5'7'9'11

Answers

Answered by bhanwaridevijat0

3

Answer:

440

Step-by-step explanation:

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

Sn=20/2(2×3+19×2)

Sn=10×44

Sn=440

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