Math, asked by AAUMI, 11 months ago

sum of first 10 terms of ap. 3,11,19.....is​

Answers

Answered by angrykartik
4

Answer:

390

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Answered by pratikM416
1

the ap is 3,11,19.......

so,sum=10/2{2×3+(10-1)8}

=5{6+72}

=5×78

=390

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