Math, asked by sowmya71915, 10 months ago

The sum of 19 terms of an A.P whose nth term is 2n+1 I need with clear explaination

Answers

Answered by ishaanygupta

1

Here, Put the values of n in the formula 2n+1 as 1 to get the 1st term

N as 2 as 2nd term

The common difference is difference between two consecutive terms

The formula of sum of AP i have mentioned in photo

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