Math, asked by rrameshlokesh, 3 months ago

In an arithmetic progression if an= 2n + 1 then find the sum of first 20 terms.

Answers

Answered by araj3024

1

Answer:

20.2+1=41 first 20 terms.

Answered by gudiyarj

3

a20=2×20+1

a20=40+1

a20=41

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